From 26884432a2ecb750c108996efc00ef5d0b9a0371 Mon Sep 17 00:00:00 2001
From: Scott Nonnenberg <scott@signal.org>
Date: Wed, 18 Nov 2020 07:15:42 -0800
Subject: [PATCH] Update TypeScript, Prettier and typescript-eslint for new
 TypeScript 3.8 syntax

---
 .eslintrc.js                                  |   6 +
 .github/ISSUE_TEMPLATE.md                     |  10 +-
 .prettierrc.js                                |   1 +
 js/database.js                                |   2 +-
 js/deletes.js                                 |   2 +-
 js/delivery_receipts.js                       |   2 +-
 js/expiring_messages.js                       |   2 +-
 js/expiring_tap_to_view_messages.js           |   2 +-
 js/keychange_listener.js                      |   2 +-
 js/libphonenumber-util.js                     |  12 +-
 js/message_controller.js                      |   2 +-
 js/message_requests.js                        |   2 +-
 js/models/blockedNumbers.js                   |   2 +-
 js/modules/attachment_downloads.js            |   5 +-
 js/notifications.js                           |   2 +-
 js/reactions.js                               |   2 +-
 js/read_receipts.js                           |   2 +-
 js/read_syncs.js                              |   2 +-
 js/reliable_trigger.js                        |   8 +-
 js/rotate_signed_prekey_listener.js           |   2 +-
 js/signal_protocol_store.js                   |   2 +-
 js/storage.js                                 |   2 +-
 js/view_syncs.js                              |   2 +-
 js/views/app_view.js                          |   2 +-
 js/views/banner_view.js                       |   2 +-
 js/views/clear_data_view.js                   |   2 +-
 js/views/confirmation_dialog_view.js          |   2 +-
 js/views/contact_list_view.js                 |   2 +-
 js/views/debug_log_view.js                    |   6 +-
 js/views/group_member_list_view.js            |   2 +-
 js/views/identicon_svg_view.js                |   2 +-
 js/views/inbox_view.js                        |   2 +-
 js/views/install_view.js                      |   2 +-
 js/views/key_verification_view.js             |   2 +-
 js/views/list_view.js                         |   2 +-
 js/views/phone-input-view.js                  |   2 +-
 js/views/react_wrapper_view.js                |   2 +-
 js/views/recorder_view.js                     |   2 +-
 js/views/safety_number_change_dialog_view.js  |   2 +-
 js/views/settings_view.js                     |   2 +-
 js/views/standalone_registration_view.js      |  24 +--
 js/views/toast_view.js                        |   2 +-
 js/views/whisper_view.js                      |   2 +-
 js/wall_clock_listener.js                     |   2 +-
 libtextsecure/protobufs.js                    |   2 +-
 libtextsecure/protocol_wrapper.js             |   2 +-
 libtextsecure/storage/unprocessed.js          |   2 +-
 libtextsecure/storage/user.js                 |   2 +-
 package.json                                  |   8 +-
 preload.js                                    |   4 +-
 sticker-creator/components/StickerFrame.tsx   |  18 ++-
 sticker-creator/preload.js                    |   4 +-
 ts/background.ts                              |  10 +-
 .../media-gallery/groupMediaItemsByDate.ts    |   4 +-
 ts/models/messages.ts                         |   5 +-
 ts/quill/emoji/completion.tsx                 |   5 +-
 ts/quill/mentions/completion.tsx              |   5 +-
 ts/state/createStore.ts                       |   1 +
 ts/textsecure/TaskWithTimeout.ts              |   5 +-
 ts/textsecure/WebSocket.ts                    |   4 +-
 ts/util/lint/exceptions.json                  |  93 ++++++------
 ts/util/lint/linter.ts                        |   1 +
 ts/util/zkgroup.ts                            |   5 +-
 ts/views/conversation_view.ts                 |   5 +-
 yarn.lock                                     | 142 +++++++++++++++++-
 65 files changed, 286 insertions(+), 185 deletions(-)

diff --git a/.eslintrc.js b/.eslintrc.js
index a9459faab..55286c224 100644
--- a/.eslintrc.js
+++ b/.eslintrc.js
@@ -15,6 +15,12 @@ const rules = {
     },
   ],
 
+  // Overrides recommended by typescript-eslint
+  //   https://github.com/typescript-eslint/typescript-eslint/releases/tag/v4.0.0
+  '@typescript-eslint/no-redeclare': 'error',
+  '@typescript-eslint/no-shadow': 'error',
+  'no-shadow': 'off',
+
   // prevents us from accidentally checking in exclusive tests (`.only`):
   'mocha/no-exclusive-tests': 'error',
 
diff --git a/.github/ISSUE_TEMPLATE.md b/.github/ISSUE_TEMPLATE.md
index 0c6c49ab8..59888c7b9 100644
--- a/.github/ISSUE_TEMPLATE.md
+++ b/.github/ISSUE_TEMPLATE.md
@@ -13,11 +13,11 @@ Lastly, be sure to preview your issue before saving. Thanks!
 -->
 
 - [ ] I have searched open and closed issues for duplicates
-  <!--
-    You can search all issues here:
-      https://github.com/signalapp/Signal-Desktop/issues?utf8=%E2%9C%93&q=is%3Aissue
-    Replace [ ] with [X] once you've searched
-  -->
+<!--
+  You can search all issues here:
+    https://github.com/signalapp/Signal-Desktop/issues?utf8=%E2%9C%93&q=is%3Aissue
+  Replace [ ] with [X] once you've searched
+-->
 
 ---
 
diff --git a/.prettierrc.js b/.prettierrc.js
index 9fd82ac99..26000173a 100644
--- a/.prettierrc.js
+++ b/.prettierrc.js
@@ -3,5 +3,6 @@
 
 module.exports = {
   singleQuote: true,
+  arrowParens: 'avoid',
   trailingComma: 'es5',
 };
diff --git a/js/database.js b/js/database.js
index b1d1ba09d..d48616add 100644
--- a/js/database.js
+++ b/js/database.js
@@ -4,7 +4,7 @@
 /* global Whisper: false */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   window.Whisper.Database = window.Whisper.Database || {};
   window.Whisper.Database.id = window.Whisper.Database.id || 'signal';
diff --git a/js/deletes.js b/js/deletes.js
index 8dabd01a8..dfbfa0870 100644
--- a/js/deletes.js
+++ b/js/deletes.js
@@ -11,7 +11,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   Whisper.Deletes = new (Backbone.Collection.extend({
     forMessage(message) {
diff --git a/js/delivery_receipts.js b/js/delivery_receipts.js
index e04031cd4..44be4b5e5 100644
--- a/js/delivery_receipts.js
+++ b/js/delivery_receipts.js
@@ -12,7 +12,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.DeliveryReceipts = new (Backbone.Collection.extend({
diff --git a/js/expiring_messages.js b/js/expiring_messages.js
index 95f177f01..5618ca5f2 100644
--- a/js/expiring_messages.js
+++ b/js/expiring_messages.js
@@ -8,7 +8,7 @@
 */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   async function destroyExpiredMessages() {
diff --git a/js/expiring_tap_to_view_messages.js b/js/expiring_tap_to_view_messages.js
index 37e37e69c..52ff70ea8 100644
--- a/js/expiring_tap_to_view_messages.js
+++ b/js/expiring_tap_to_view_messages.js
@@ -8,7 +8,7 @@
 */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   async function eraseTapToViewMessages() {
diff --git a/js/keychange_listener.js b/js/keychange_listener.js
index 273960c6f..84053e6f9 100644
--- a/js/keychange_listener.js
+++ b/js/keychange_listener.js
@@ -6,7 +6,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.KeyChangeListener = {
diff --git a/js/libphonenumber-util.js b/js/libphonenumber-util.js
index 49e1801e6..57e4155cc 100644
--- a/js/libphonenumber-util.js
+++ b/js/libphonenumber-util.js
@@ -1,7 +1,7 @@
 // Copyright 2014-2020 Signal Messenger, LLC
 // SPDX-License-Identifier: AGPL-3.0-only
 
-(function() {
+(function () {
   'use strict';
 
   /*
@@ -12,7 +12,7 @@
 
   window.libphonenumber = window.libphonenumber || {};
   window.libphonenumber.util = {
-    getRegionCodeForNumber: function(number) {
+    getRegionCodeForNumber: function (number) {
       try {
         var parsedNumber = libphonenumber.parse(number);
         return libphonenumber.getRegionCodeForNumber(parsedNumber);
@@ -21,7 +21,7 @@
       }
     },
 
-    splitCountryCode: function(number) {
+    splitCountryCode: function (number) {
       var parsedNumber = libphonenumber.parse(number);
       return {
         country_code: parsedNumber.values_[1],
@@ -29,12 +29,12 @@
       };
     },
 
-    getCountryCode: function(regionCode) {
+    getCountryCode: function (regionCode) {
       var cc = libphonenumber.getCountryCodeForRegion(regionCode);
       return cc !== 0 ? cc : '';
     },
 
-    parseNumber: function(number, defaultRegionCode) {
+    parseNumber: function (number, defaultRegionCode) {
       try {
         var parsedNumber = libphonenumber.parse(number, defaultRegionCode);
 
@@ -53,7 +53,7 @@
       }
     },
 
-    getAllRegionCodes: function() {
+    getAllRegionCodes: function () {
       return {
         AD: 'Andorra',
         AE: 'United Arab Emirates',
diff --git a/js/message_controller.js b/js/message_controller.js
index 9db7e4e85..c42933b50 100644
--- a/js/message_controller.js
+++ b/js/message_controller.js
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: AGPL-3.0-only
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   const messageLookup = Object.create(null);
diff --git a/js/message_requests.js b/js/message_requests.js
index 55c5753b3..60873b8b6 100644
--- a/js/message_requests.js
+++ b/js/message_requests.js
@@ -10,7 +10,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   Whisper.MessageRequests = new (Backbone.Collection.extend({
     forConversation(conversation) {
diff --git a/js/models/blockedNumbers.js b/js/models/blockedNumbers.js
index 979dabb39..a06b0ecca 100644
--- a/js/models/blockedNumbers.js
+++ b/js/models/blockedNumbers.js
@@ -4,7 +4,7 @@
 /* global storage, _ */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   const BLOCKED_NUMBERS_ID = 'blocked';
   const BLOCKED_UUIDS_ID = 'blocked-uuids';
   const BLOCKED_GROUPS_ID = 'blocked-groups';
diff --git a/js/modules/attachment_downloads.js b/js/modules/attachment_downloads.js
index 823f00081..01936bf83 100644
--- a/js/modules/attachment_downloads.js
+++ b/js/modules/attachment_downloads.js
@@ -199,8 +199,9 @@ async function _runJob(job) {
       logger.warn(
         `_runJob: Got 404 from server for CDN ${
           attachment.cdnNumber
-        }, marking attachment ${attachment.cdnId ||
-          attachment.cdnKey} from message ${message.idForLogging()} as permanent error`
+        }, marking attachment ${
+          attachment.cdnId || attachment.cdnKey
+        } from message ${message.idForLogging()} as permanent error`
       );
 
       await _finishJob(message, id);
diff --git a/js/notifications.js b/js/notifications.js
index 626922f1b..72c3dc050 100644
--- a/js/notifications.js
+++ b/js/notifications.js
@@ -11,7 +11,7 @@
 /* global _: false */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   // The keys and values don't match here. This is because the values correspond to old
diff --git a/js/reactions.js b/js/reactions.js
index 4d9791c3a..fd1d04f52 100644
--- a/js/reactions.js
+++ b/js/reactions.js
@@ -11,7 +11,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   Whisper.Reactions = new (Backbone.Collection.extend({
     forMessage(message) {
diff --git a/js/read_receipts.js b/js/read_receipts.js
index 8d3dc4595..0f1b17328 100644
--- a/js/read_receipts.js
+++ b/js/read_receipts.js
@@ -12,7 +12,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   Whisper.ReadReceipts = new (Backbone.Collection.extend({
     forMessage(conversation, message) {
diff --git a/js/read_syncs.js b/js/read_syncs.js
index 8c5df2d79..ca76472f5 100644
--- a/js/read_syncs.js
+++ b/js/read_syncs.js
@@ -10,7 +10,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   Whisper.ReadSyncs = new (Backbone.Collection.extend({
     forMessage(message) {
diff --git a/js/reliable_trigger.js b/js/reliable_trigger.js
index b9fcbeae6..4e3c79e8a 100644
--- a/js/reliable_trigger.js
+++ b/js/reliable_trigger.js
@@ -6,7 +6,7 @@
 // This file was taken from Backbone and then modified. It does not conform to this
 //   project's standards.
 
-(function() {
+(function () {
   'use strict';
 
   // Note: this is all the code required to customize Backbone's trigger() method to make
@@ -32,7 +32,7 @@
   // Implement fancy features of the Events API such as multiple event
   // names `"change blur"` and jQuery-style event maps `{change: action}`
   // in terms of the existing API.
-  const eventsApi = function(obj, action, name, rest) {
+  const eventsApi = function (obj, action, name, rest) {
     if (!name) return true;
 
     // Handle event maps.
@@ -58,14 +58,14 @@
   // A difficult-to-believe, but optimized internal dispatch function for
   // triggering events. Tries to keep the usual cases speedy (most internal
   // Backbone events have 3 arguments).
-  const triggerEvents = function(events, name, args) {
+  const triggerEvents = function (events, name, args) {
     let ev,
       i = -1,
       l = events.length,
       a1 = args[0],
       a2 = args[1],
       a3 = args[2];
-    const logError = function(error) {
+    const logError = function (error) {
       window.log.error(
         'Model caught error triggering',
         name,
diff --git a/js/rotate_signed_prekey_listener.js b/js/rotate_signed_prekey_listener.js
index c49d2f109..4589cc543 100644
--- a/js/rotate_signed_prekey_listener.js
+++ b/js/rotate_signed_prekey_listener.js
@@ -4,7 +4,7 @@
 /* global Whisper, storage, getAccountManager */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   const ROTATION_INTERVAL = 48 * 60 * 60 * 1000;
   let timeout;
diff --git a/js/signal_protocol_store.js b/js/signal_protocol_store.js
index 840b4c5c2..792d4dd80 100644
--- a/js/signal_protocol_store.js
+++ b/js/signal_protocol_store.js
@@ -7,7 +7,7 @@
 /* eslint-disable no-proto */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   const TIMESTAMP_THRESHOLD = 5 * 1000; // 5 seconds
   const Direction = {
     SENDING: 1,
diff --git a/js/storage.js b/js/storage.js
index f4417c2b9..47eb94b4b 100644
--- a/js/storage.js
+++ b/js/storage.js
@@ -5,7 +5,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   let ready = false;
diff --git a/js/view_syncs.js b/js/view_syncs.js
index e21540afd..4346234e3 100644
--- a/js/view_syncs.js
+++ b/js/view_syncs.js
@@ -10,7 +10,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   Whisper.ViewSyncs = new (Backbone.Collection.extend({
     forMessage(message) {
diff --git a/js/views/app_view.js b/js/views/app_view.js
index e5b55b0f9..bf12e61f6 100644
--- a/js/views/app_view.js
+++ b/js/views/app_view.js
@@ -6,7 +6,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   function resolveTheme() {
diff --git a/js/views/banner_view.js b/js/views/banner_view.js
index c75197fae..70eea630b 100644
--- a/js/views/banner_view.js
+++ b/js/views/banner_view.js
@@ -4,7 +4,7 @@
 /* global Whisper */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.BannerView = Whisper.View.extend({
diff --git a/js/views/clear_data_view.js b/js/views/clear_data_view.js
index ff6313c85..ebdae23e4 100644
--- a/js/views/clear_data_view.js
+++ b/js/views/clear_data_view.js
@@ -7,7 +7,7 @@
 /* eslint-disable no-new */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   const { Logs } = window.Signal;
 
diff --git a/js/views/confirmation_dialog_view.js b/js/views/confirmation_dialog_view.js
index b40f83502..4a95637de 100644
--- a/js/views/confirmation_dialog_view.js
+++ b/js/views/confirmation_dialog_view.js
@@ -4,7 +4,7 @@
 /* global Backbone, Whisper, i18n */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.ConfirmationDialogView = Whisper.View.extend({
diff --git a/js/views/contact_list_view.js b/js/views/contact_list_view.js
index 9af1cc658..fdbe5d2b6 100644
--- a/js/views/contact_list_view.js
+++ b/js/views/contact_list_view.js
@@ -5,7 +5,7 @@
 /* global textsecure: false */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.ContactListView = Whisper.ListView.extend({
diff --git a/js/views/debug_log_view.js b/js/views/debug_log_view.js
index 8ae526a55..519091156 100644
--- a/js/views/debug_log_view.js
+++ b/js/views/debug_log_view.js
@@ -5,7 +5,7 @@
 /* global Whisper: false */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.LinkedCopiedToast = Whisper.ToastView.extend({
@@ -80,9 +80,7 @@
         });
         this.$('.loading').removeClass('loading');
         view.render();
-        this.$('.link')
-          .focus()
-          .select();
+        this.$('.link').focus().select();
       } catch (error) {
         window.log.error(
           'DebugLogView error:',
diff --git a/js/views/group_member_list_view.js b/js/views/group_member_list_view.js
index fd080f625..d0c75b616 100644
--- a/js/views/group_member_list_view.js
+++ b/js/views/group_member_list_view.js
@@ -4,7 +4,7 @@
 /* global Whisper, i18n */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   // TODO: take a title string which could replace the 'members' header
diff --git a/js/views/identicon_svg_view.js b/js/views/identicon_svg_view.js
index c6f6f9394..60b51999d 100644
--- a/js/views/identicon_svg_view.js
+++ b/js/views/identicon_svg_view.js
@@ -4,7 +4,7 @@
 /* global Whisper, loadImage */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   /*
diff --git a/js/views/inbox_view.js b/js/views/inbox_view.js
index 66bdb5e09..535a24190 100644
--- a/js/views/inbox_view.js
+++ b/js/views/inbox_view.js
@@ -9,7 +9,7 @@
 */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.StickerPackInstallFailedToast = Whisper.ToastView.extend({
diff --git a/js/views/install_view.js b/js/views/install_view.js
index 19737d384..221ccb888 100644
--- a/js/views/install_view.js
+++ b/js/views/install_view.js
@@ -6,7 +6,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   const Steps = {
diff --git a/js/views/key_verification_view.js b/js/views/key_verification_view.js
index ad0c89682..116f3cce9 100644
--- a/js/views/key_verification_view.js
+++ b/js/views/key_verification_view.js
@@ -6,7 +6,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.KeyVerificationPanelView = Whisper.View.extend({
diff --git a/js/views/list_view.js b/js/views/list_view.js
index 7ae52e43a..b546ce89a 100644
--- a/js/views/list_view.js
+++ b/js/views/list_view.js
@@ -4,7 +4,7 @@
 /* global Backbone, Whisper, _ */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   /*
diff --git a/js/views/phone-input-view.js b/js/views/phone-input-view.js
index 6c9c738dc..8e185fcc9 100644
--- a/js/views/phone-input-view.js
+++ b/js/views/phone-input-view.js
@@ -4,7 +4,7 @@
 /* global libphonenumber, Whisper */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.PhoneInputView = Whisper.View.extend({
diff --git a/js/views/react_wrapper_view.js b/js/views/react_wrapper_view.js
index a672da667..58a614fe7 100644
--- a/js/views/react_wrapper_view.js
+++ b/js/views/react_wrapper_view.js
@@ -7,7 +7,7 @@
 /* global ReactDOM: false */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   window.Whisper.ReactWrapperView = Backbone.View.extend({
diff --git a/js/views/recorder_view.js b/js/views/recorder_view.js
index f7b485dad..b481da405 100644
--- a/js/views/recorder_view.js
+++ b/js/views/recorder_view.js
@@ -6,7 +6,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.RecorderView = Whisper.View.extend({
diff --git a/js/views/safety_number_change_dialog_view.js b/js/views/safety_number_change_dialog_view.js
index c37607e45..64ff82001 100644
--- a/js/views/safety_number_change_dialog_view.js
+++ b/js/views/safety_number_change_dialog_view.js
@@ -4,7 +4,7 @@
 /* global Whisper, Signal */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.SafetyNumberChangeDialogView = Whisper.View.extend({
diff --git a/js/views/settings_view.js b/js/views/settings_view.js
index f86d8165f..d5eff2de3 100644
--- a/js/views/settings_view.js
+++ b/js/views/settings_view.js
@@ -8,7 +8,7 @@
 /* eslint-disable no-new */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
   const { Settings } = window.Signal.Types;
 
diff --git a/js/views/standalone_registration_view.js b/js/views/standalone_registration_view.js
index 98308c350..3df07054c 100644
--- a/js/views/standalone_registration_view.js
+++ b/js/views/standalone_registration_view.js
@@ -6,7 +6,7 @@
 /* eslint-disable more/no-then */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.StandaloneRegistrationView = Whisper.View.extend({
@@ -37,9 +37,7 @@
     },
     verifyCode() {
       const number = this.phoneView.validateNumber();
-      const verificationCode = $('#code')
-        .val()
-        .replace(/\D+/g, '');
+      const verificationCode = $('#code').val().replace(/\D+/g, '');
 
       this.accountManager
         .registerSingleDevice(number, verificationCode)
@@ -53,9 +51,7 @@
       this.$('#status').text(s);
     },
     validateCode() {
-      const verificationCode = $('#code')
-        .val()
-        .replace(/\D/g, '');
+      const verificationCode = $('#code').val().replace(/\D/g, '');
 
       if (verificationCode.length === 6) {
         return verificationCode;
@@ -64,11 +60,7 @@
       return null;
     },
     displayError(error) {
-      this.$('#error')
-        .hide()
-        .text(error)
-        .addClass('in')
-        .fadeIn();
+      this.$('#error').hide().text(error).addClass('in').fadeIn();
     },
     onValidation() {
       if (this.$('#number-container').hasClass('valid')) {
@@ -92,9 +84,7 @@
         this.accountManager
           .requestVoiceVerification(number)
           .catch(this.displayError.bind(this));
-        this.$('#step2')
-          .addClass('in')
-          .fadeIn();
+        this.$('#step2').addClass('in').fadeIn();
       } else {
         this.$('#number-container').addClass('invalid');
       }
@@ -107,9 +97,7 @@
         this.accountManager
           .requestSMSVerification(number)
           .catch(this.displayError.bind(this));
-        this.$('#step2')
-          .addClass('in')
-          .fadeIn();
+        this.$('#step2').addClass('in').fadeIn();
       } else {
         this.$('#number-container').addClass('invalid');
       }
diff --git a/js/views/toast_view.js b/js/views/toast_view.js
index be7e72185..51e14a213 100644
--- a/js/views/toast_view.js
+++ b/js/views/toast_view.js
@@ -4,7 +4,7 @@
 /* global Whisper, Mustache, _ */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.ToastView = Whisper.View.extend({
diff --git a/js/views/whisper_view.js b/js/views/whisper_view.js
index 20bcabd82..1388b69c6 100644
--- a/js/views/whisper_view.js
+++ b/js/views/whisper_view.js
@@ -24,7 +24,7 @@
  */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   Whisper.View = Backbone.View.extend(
diff --git a/js/wall_clock_listener.js b/js/wall_clock_listener.js
index 7936d4d43..4b4bf63b7 100644
--- a/js/wall_clock_listener.js
+++ b/js/wall_clock_listener.js
@@ -4,7 +4,7 @@
 /* global Whisper */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.Whisper = window.Whisper || {};
 
   let lastTime;
diff --git a/libtextsecure/protobufs.js b/libtextsecure/protobufs.js
index 1c0a910a2..5b6d57dc5 100644
--- a/libtextsecure/protobufs.js
+++ b/libtextsecure/protobufs.js
@@ -4,7 +4,7 @@
 /* global window, dcodeIO, textsecure */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   const FILES_TO_LOAD = [
     'SignalService.proto',
     'SignalStorage.proto',
diff --git a/libtextsecure/protocol_wrapper.js b/libtextsecure/protocol_wrapper.js
index 4ab35a0c0..559a3ee42 100644
--- a/libtextsecure/protocol_wrapper.js
+++ b/libtextsecure/protocol_wrapper.js
@@ -4,7 +4,7 @@
 /* global window, textsecure, SignalProtocolStore, libsignal */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   window.textsecure = window.textsecure || {};
   window.textsecure.storage = window.textsecure.storage || {};
 
diff --git a/libtextsecure/storage/unprocessed.js b/libtextsecure/storage/unprocessed.js
index 97448b922..60645c97e 100644
--- a/libtextsecure/storage/unprocessed.js
+++ b/libtextsecure/storage/unprocessed.js
@@ -4,7 +4,7 @@
 /* global window, textsecure */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   /** ***************************************
    *** Not-yet-processed message storage ***
    **************************************** */
diff --git a/libtextsecure/storage/user.js b/libtextsecure/storage/user.js
index 00e2533ed..3a6aa7f3e 100644
--- a/libtextsecure/storage/user.js
+++ b/libtextsecure/storage/user.js
@@ -4,7 +4,7 @@
 /* global textsecure, window */
 
 // eslint-disable-next-line func-names
-(function() {
+(function () {
   /** *******************************************
    *** Utilities to store data about the user ***
    ********************************************* */
diff --git a/package.json b/package.json
index cd2806b8f..137374b4b 100644
--- a/package.json
+++ b/package.json
@@ -206,8 +206,8 @@
     "@types/webpack": "4.39.0",
     "@types/webpack-dev-server": "3.1.7",
     "@types/websocket": "1.0.0",
-    "@typescript-eslint/eslint-plugin": "3.10.1",
-    "@typescript-eslint/parser": "3.10.1",
+    "@typescript-eslint/eslint-plugin": "4.8.1",
+    "@typescript-eslint/parser": "4.8.1",
     "arraybuffer-loader": "1.0.3",
     "asar": "0.14.0",
     "babel-core": "7.0.0-bridge.0",
@@ -246,7 +246,7 @@
     "npm-run-all": "4.1.5",
     "nyc": "11.4.1",
     "patch-package": "6.1.2",
-    "prettier": "1.19.1",
+    "prettier": "2.1.2",
     "react-docgen-typescript": "1.2.6",
     "sass-loader": "7.2.0",
     "sinon": "9.2.0",
@@ -256,7 +256,7 @@
     "ts-loader": "4.1.0",
     "ts-node": "8.3.0",
     "typed-scss-modules": "0.0.11",
-    "typescript": "3.7.4",
+    "typescript": "3.8.3",
     "webpack": "4.39.2",
     "webpack-cli": "3.3.7",
     "webpack-dev-server": "3.8.0"
diff --git a/preload.js b/preload.js
index 456396ab0..414a01de9 100644
--- a/preload.js
+++ b/preload.js
@@ -367,8 +367,8 @@ try {
     directoryEnclaveId: config.directoryEnclaveId,
     directoryTrustAnchor: config.directoryTrustAnchor,
     cdnUrlObject: {
-      '0': config.cdnUrl0,
-      '2': config.cdnUrl2,
+      0: config.cdnUrl0,
+      2: config.cdnUrl2,
     },
     certificateAuthority: config.certificateAuthority,
     contentProxyUrl: config.contentProxyUrl,
diff --git a/sticker-creator/components/StickerFrame.tsx b/sticker-creator/components/StickerFrame.tsx
index 5e86ee48e..5b7dfbf1d 100644
--- a/sticker-creator/components/StickerFrame.tsx
+++ b/sticker-creator/components/StickerFrame.tsx
@@ -188,14 +188,16 @@ export const StickerFrame = React.memo(
               onMouseLeave={handleMouseLeave}
               ref={rootRef}
             >
-              {// eslint-disable-next-line no-nested-ternary
-              mode !== 'add' ? (
-                image ? (
-                  <ImageHandle src={image} />
-                ) : (
-                  <div className={styles.spinner}>{spinnerSvg}</div>
-                )
-              ) : null}
+              {
+                // eslint-disable-next-line no-nested-ternary
+                mode !== 'add' ? (
+                  image ? (
+                    <ImageHandle src={image} />
+                  ) : (
+                    <div className={styles.spinner}>{spinnerSvg}</div>
+                  )
+                ) : null
+              }
               {showGuide && mode !== 'add' ? (
                 <div className={styles.guide} />
               ) : null}
diff --git a/sticker-creator/preload.js b/sticker-creator/preload.js
index d0a55ed4d..7e60050c4 100644
--- a/sticker-creator/preload.js
+++ b/sticker-creator/preload.js
@@ -52,8 +52,8 @@ const WebAPI = initializeWebAPI({
   directoryEnclaveId: config.directoryEnclaveId,
   directoryTrustAnchor: config.directoryTrustAnchor,
   cdnUrlObject: {
-    '0': config.cdnUrl0,
-    '2': config.cdnUrl2,
+    0: config.cdnUrl0,
+    2: config.cdnUrl2,
   },
   certificateAuthority: config.certificateAuthority,
   contentProxyUrl: config.contentProxyUrl,
diff --git a/ts/background.ts b/ts/background.ts
index 997a8cae1..8d70d1525 100644
--- a/ts/background.ts
+++ b/ts/background.ts
@@ -4,7 +4,7 @@
 type WhatIsThis = typeof window.WhatIsThis;
 
 // eslint-disable-next-line func-names
-(async function() {
+(async function () {
   const eventHandlerQueue = new window.PQueue({
     concurrency: 1,
     timeout: 1000 * 60 * 2,
@@ -136,9 +136,7 @@ type WhatIsThis = typeof window.WhatIsThis;
     }
 
     interactionMode = 'keyboard';
-    $(document.body)
-      .addClass('keyboard-mode')
-      .removeClass('mouse-mode');
+    $(document.body).addClass('keyboard-mode').removeClass('mouse-mode');
     const { userChanged } = window.reduxActions.user;
     const { clearSelectedMessage } = window.reduxActions.conversations;
     if (clearSelectedMessage) {
@@ -156,9 +154,7 @@ type WhatIsThis = typeof window.WhatIsThis;
     }
 
     interactionMode = 'mouse';
-    $(document.body)
-      .addClass('mouse-mode')
-      .removeClass('keyboard-mode');
+    $(document.body).addClass('mouse-mode').removeClass('keyboard-mode');
     const { userChanged } = window.reduxActions.user;
     const { clearSelectedMessage } = window.reduxActions.conversations;
     if (clearSelectedMessage) {
diff --git a/ts/components/conversation/media-gallery/groupMediaItemsByDate.ts b/ts/components/conversation/media-gallery/groupMediaItemsByDate.ts
index 1628f8486..22121e8b7 100644
--- a/ts/components/conversation/media-gallery/groupMediaItemsByDate.ts
+++ b/ts/components/conversation/media-gallery/groupMediaItemsByDate.ts
@@ -115,9 +115,7 @@ const withSection = (referenceDateTime: moment.Moment) => (
   mediaItem: MediaItemType
 ): MediaItemWithSection => {
   const today = moment(referenceDateTime).startOf('day');
-  const yesterday = moment(referenceDateTime)
-    .subtract(1, 'day')
-    .startOf('day');
+  const yesterday = moment(referenceDateTime).subtract(1, 'day').startOf('day');
   const thisWeek = moment(referenceDateTime).startOf('isoWeek');
   const thisMonth = moment(referenceDateTime).startOf('month');
 
diff --git a/ts/models/messages.ts b/ts/models/messages.ts
index 5cdcea977..9782f2053 100644
--- a/ts/models/messages.ts
+++ b/ts/models/messages.ts
@@ -2987,8 +2987,9 @@ export class MessageModel extends window.Backbone.Model<MessageAttributesType> {
         );
         if (preview.length < incomingPreview.length) {
           window.log.info(
-            `${message.idForLogging()}: Eliminated ${preview.length -
-              incomingPreview.length} previews with invalid urls'`
+            `${message.idForLogging()}: Eliminated ${
+              preview.length - incomingPreview.length
+            } previews with invalid urls'`
           );
         }
 
diff --git a/ts/quill/emoji/completion.tsx b/ts/quill/emoji/completion.tsx
index 355cba5f4..3eee54196 100644
--- a/ts/quill/emoji/completion.tsx
+++ b/ts/quill/emoji/completion.tsx
@@ -222,10 +222,7 @@ export class EmojiCompletion {
   ): void {
     const emoji = convertShortName(emojiData.short_name, this.options.skinTone);
 
-    const delta = new Delta()
-      .retain(index)
-      .delete(range)
-      .insert({ emoji });
+    const delta = new Delta().retain(index).delete(range).insert({ emoji });
 
     if (withTrailingSpace) {
       this.quill.updateContents(delta.insert(' '), 'user');
diff --git a/ts/quill/mentions/completion.tsx b/ts/quill/mentions/completion.tsx
index d5624cfc9..3f22feb0f 100644
--- a/ts/quill/mentions/completion.tsx
+++ b/ts/quill/mentions/completion.tsx
@@ -183,10 +183,7 @@ export class MentionCompletion {
     range: number,
     withTrailingSpace = false
   ): void {
-    const delta = new Delta()
-      .retain(index)
-      .delete(range)
-      .insert({ mention });
+    const delta = new Delta().retain(index).delete(range).insert({ mention });
 
     if (withTrailingSpace) {
       this.quill.updateContents(delta.insert(' '), 'user');
diff --git a/ts/state/createStore.ts b/ts/state/createStore.ts
index f6bf1b3af..eb35cded0 100644
--- a/ts/state/createStore.ts
+++ b/ts/state/createStore.ts
@@ -17,6 +17,7 @@ import { createLogger } from 'redux-logger';
 import { reducer, StateType } from './reducer';
 
 declare global {
+  // eslint-disable-next-line @typescript-eslint/no-unused-vars
   interface Console {
     _log: Console['log'];
   }
diff --git a/ts/textsecure/TaskWithTimeout.ts b/ts/textsecure/TaskWithTimeout.ts
index 8e3a94dba..8d9d66427 100644
--- a/ts/textsecure/TaskWithTimeout.ts
+++ b/ts/textsecure/TaskWithTimeout.ts
@@ -15,8 +15,9 @@ export default function createTaskWithTimeout<T>(
       let complete = false;
       let timer: NodeJS.Timeout | null = setTimeout(() => {
         if (!complete) {
-          const message = `${id ||
-            ''} task did not complete in time. Calling stack: ${
+          const message = `${
+            id || ''
+          } task did not complete in time. Calling stack: ${
             errorForStack.stack
           }`;
 
diff --git a/ts/textsecure/WebSocket.ts b/ts/textsecure/WebSocket.ts
index daa2013be..80f733da4 100644
--- a/ts/textsecure/WebSocket.ts
+++ b/ts/textsecure/WebSocket.ts
@@ -5,7 +5,8 @@ import { w3cwebsocket } from 'websocket';
 
 type ModifiedEventSource = Omit<EventSource, 'onerror'>;
 
-declare class ModifiedWebSocket extends w3cwebsocket
+declare class ModifiedWebSocket
+  extends w3cwebsocket
   implements ModifiedEventSource {
   withCredentials: boolean;
 
@@ -17,4 +18,5 @@ declare class ModifiedWebSocket extends w3cwebsocket
 }
 
 export type WebSocket = ModifiedWebSocket;
+// eslint-disable-next-line @typescript-eslint/no-redeclare
 export const WebSocket = w3cwebsocket as typeof ModifiedWebSocket;
diff --git a/ts/util/lint/exceptions.json b/ts/util/lint/exceptions.json
index 52e820236..2c21ed804 100644
--- a/ts/util/lint/exceptions.json
+++ b/ts/util/lint/exceptions.json
@@ -441,29 +441,29 @@
   {
     "rule": "jQuery-$(",
     "path": "js/views/debug_log_view.js",
-    "line": "        this.$('.link')",
+    "line": "        this.$('.link').focus().select();",
     "lineNumber": 83,
     "reasonCategory": "usageTrusted",
-    "updated": "2020-05-01T17:11:39.527Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/debug_log_view.js",
     "line": "        this.$('.loading').removeClass('loading');",
-    "lineNumber": 91,
+    "lineNumber": 89,
     "reasonCategory": "usageTrusted",
-    "updated": "2020-05-01T17:11:39.527Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/debug_log_view.js",
     "line": "        this.$('.result').text(i18n('debugLogError'));",
-    "lineNumber": 92,
+    "lineNumber": 90,
     "reasonCategory": "usageTrusted",
-    "updated": "2020-09-11T17:24:56.124Z",
-    "reasonDetail": "Static selector argument"
+    "updated": "2020-11-18T03:39:29.033Z",
+    "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
@@ -1201,136 +1201,136 @@
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
-    "line": "      const verificationCode = $('#code')",
+    "line": "      const verificationCode = $('#code').val().replace(/\\D+/g, '');",
     "lineNumber": 40,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "      this.$('#status').text(s);",
-    "lineNumber": 53,
+    "lineNumber": 51,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
-    "line": "      const verificationCode = $('#code')",
-    "lineNumber": 56,
+    "line": "      const verificationCode = $('#code').val().replace(/\\D/g, '');",
+    "lineNumber": 54,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
-    "line": "      this.$('#error')",
-    "lineNumber": 67,
+    "line": "      this.$('#error').hide().text(error).addClass('in').fadeIn();",
+    "lineNumber": 63,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "      if (this.$('#number-container').hasClass('valid')) {",
-    "lineNumber": 74,
+    "lineNumber": 66,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "        this.$('#request-sms, #request-voice').removeAttr('disabled');",
-    "lineNumber": 75,
+    "lineNumber": 67,
     "reasonCategory": "usageTrusted",
-    "updated": "2020-09-11T17:24:56.124Z",
-    "reasonDetail": "Static selector argument"
+    "updated": "2020-11-18T03:39:29.033Z",
+    "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "        this.$('#request-sms, #request-voice').prop('disabled', 'disabled');",
-    "lineNumber": 77,
+    "lineNumber": 69,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "        this.$('#code').addClass('invalid');",
-    "lineNumber": 82,
+    "lineNumber": 74,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "        this.$('#code').removeClass('invalid');",
-    "lineNumber": 84,
+    "lineNumber": 76,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "      this.$('#error').hide();",
-    "lineNumber": 89,
+    "lineNumber": 81,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
-    "line": "        this.$('#step2')",
-    "lineNumber": 95,
+    "line": "        this.$('#step2').addClass('in').fadeIn();",
+    "lineNumber": 87,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "        this.$('#number-container').addClass('invalid');",
-    "lineNumber": 99,
+    "lineNumber": 89,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "      $('#error').hide();",
-    "lineNumber": 104,
+    "lineNumber": 94,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
-    "line": "        this.$('#step2')",
-    "lineNumber": 110,
+    "line": "        this.$('#step2').addClass('in').fadeIn();",
+    "lineNumber": 100,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
     "rule": "jQuery-$(",
     "path": "js/views/standalone_registration_view.js",
     "line": "        this.$('#number-container').addClass('invalid');",
-    "lineNumber": 114,
+    "lineNumber": 102,
     "reasonCategory": "usageTrusted",
-    "updated": "2018-09-19T21:59:32.770Z",
+    "updated": "2020-11-18T03:39:29.033Z",
     "reasonDetail": "Protected from arbitrary input"
   },
   {
@@ -1667,15 +1667,6 @@
     "updated": "2020-10-09T22:28:48.591Z",
     "reasonDetail": "Test code. Also a false match."
   },
-  {
-    "rule": "eval",
-    "path": "node_modules/@typescript-eslint/eslint-plugin/dist/rules/no-implied-eval.js",
-    "line": "            description: 'Disallow the use of `eval()`-like methods',",
-    "lineNumber": 38,
-    "reasonCategory": "falseMatch",
-    "updated": "2020-08-26T00:10:28.628Z",
-    "reasonDetail": "just a doc"
-  },
   {
     "rule": "jQuery-$(",
     "path": "node_modules/@yarnpkg/lockfile/index.js",
diff --git a/ts/util/lint/linter.ts b/ts/util/lint/linter.ts
index 9505cd80c..c80847a2a 100644
--- a/ts/util/lint/linter.ts
+++ b/ts/util/lint/linter.ts
@@ -161,6 +161,7 @@ const excludedFilesRegexps = [
   '^node_modules/es6-shim/.+', // Currently only used in storybook
   '^node_modules/escodegen/.+',
   '^node_modules/eslint.+',
+  '^node_modules/@typescript-eslint.+',
   '^node_modules/esprima/.+',
   '^node_modules/express/.+',
   '^node_modules/file-loader/.+',
diff --git a/ts/util/zkgroup.ts b/ts/util/zkgroup.ts
index 4778530c7..6b4c013a9 100644
--- a/ts/util/zkgroup.ts
+++ b/ts/util/zkgroup.ts
@@ -148,10 +148,7 @@ export function deriveGroupID(
   );
 
   return compatArrayToArrayBuffer(
-    groupSecretParams
-      .getPublicParams()
-      .getGroupIdentifier()
-      .serialize()
+    groupSecretParams.getPublicParams().getGroupIdentifier().serialize()
   );
 }
 
diff --git a/ts/views/conversation_view.ts b/ts/views/conversation_view.ts
index f74b0b516..aa82cbaa0 100644
--- a/ts/views/conversation_view.ts
+++ b/ts/views/conversation_view.ts
@@ -1838,10 +1838,7 @@ Whisper.ConversationView = Whisper.View.extend({
       return fileName;
     }
 
-    return fileName
-      .split('.')
-      .slice(0, -1)
-      .join('.');
+    return fileName.split('.').slice(0, -1).join('.');
   },
 
   getType(contentType: any) {
diff --git a/yarn.lock b/yarn.lock
index 597f79e11..a69764317 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2669,7 +2669,20 @@
   dependencies:
     "@types/yargs-parser" "*"
 
-"@typescript-eslint/eslint-plugin@3.10.1", "@typescript-eslint/eslint-plugin@^3.3.0":
+"@typescript-eslint/eslint-plugin@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-4.8.1.tgz#b362abe0ee478a6c6d06c14552a6497f0b480769"
+  integrity sha512-d7LeQ7dbUrIv5YVFNzGgaW3IQKMmnmKFneRWagRlGYOSfLJVaRbj/FrBNOBC1a3tVO+TgNq1GbHvRtg1kwL0FQ==
+  dependencies:
+    "@typescript-eslint/experimental-utils" "4.8.1"
+    "@typescript-eslint/scope-manager" "4.8.1"
+    debug "^4.1.1"
+    functional-red-black-tree "^1.0.1"
+    regexpp "^3.0.0"
+    semver "^7.3.2"
+    tsutils "^3.17.1"
+
+"@typescript-eslint/eslint-plugin@^3.3.0":
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/eslint-plugin/-/eslint-plugin-3.10.1.tgz#7e061338a1383f59edc204c605899f93dc2e2c8f"
   integrity sha512-PQg0emRtzZFWq6PxBcdxRH3QIQiyFO3WCVpRL3fgj5oQS3CDs3AeAKfv4DxNhzn8ITdNJGJ4D3Qw8eAJf3lXeQ==
@@ -2692,7 +2705,29 @@
     eslint-scope "^5.0.0"
     eslint-utils "^2.0.0"
 
-"@typescript-eslint/parser@3.10.1", "@typescript-eslint/parser@^3.3.0":
+"@typescript-eslint/experimental-utils@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/experimental-utils/-/experimental-utils-4.8.1.tgz#27275c20fa4336df99ebcf6195f7d7aa7aa9f22d"
+  integrity sha512-WigyLn144R3+lGATXW4nNcDJ9JlTkG8YdBWHkDlN0lC3gUGtDi7Pe3h5GPvFKMcRz8KbZpm9FJV9NTW8CpRHpg==
+  dependencies:
+    "@types/json-schema" "^7.0.3"
+    "@typescript-eslint/scope-manager" "4.8.1"
+    "@typescript-eslint/types" "4.8.1"
+    "@typescript-eslint/typescript-estree" "4.8.1"
+    eslint-scope "^5.0.0"
+    eslint-utils "^2.0.0"
+
+"@typescript-eslint/parser@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-4.8.1.tgz#4fe2fbdbb67485bafc4320b3ae91e34efe1219d1"
+  integrity sha512-QND8XSVetATHK9y2Ltc/XBl5Ro7Y62YuZKnPEwnNPB8E379fDsvzJ1dMJ46fg/VOmk0hXhatc+GXs5MaXuL5Uw==
+  dependencies:
+    "@typescript-eslint/scope-manager" "4.8.1"
+    "@typescript-eslint/types" "4.8.1"
+    "@typescript-eslint/typescript-estree" "4.8.1"
+    debug "^4.1.1"
+
+"@typescript-eslint/parser@^3.3.0":
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/parser/-/parser-3.10.1.tgz#1883858e83e8b442627e1ac6f408925211155467"
   integrity sha512-Ug1RcWcrJP02hmtaXVS3axPPTTPnZjupqhgj+NnZ6BCkwSImWk/283347+x9wN+lqOdK9Eo3vsyiyDHgsmiEJw==
@@ -2703,11 +2738,24 @@
     "@typescript-eslint/typescript-estree" "3.10.1"
     eslint-visitor-keys "^1.1.0"
 
+"@typescript-eslint/scope-manager@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/scope-manager/-/scope-manager-4.8.1.tgz#e343c475f8f1d15801b546cb17d7f309b768fdce"
+  integrity sha512-r0iUOc41KFFbZdPAdCS4K1mXivnSZqXS5D9oW+iykQsRlTbQRfuFRSW20xKDdYiaCoH+SkSLeIF484g3kWzwOQ==
+  dependencies:
+    "@typescript-eslint/types" "4.8.1"
+    "@typescript-eslint/visitor-keys" "4.8.1"
+
 "@typescript-eslint/types@3.10.1":
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-3.10.1.tgz#1d7463fa7c32d8a23ab508a803ca2fe26e758727"
   integrity sha512-+3+FCUJIahE9q0lDi1WleYzjCwJs5hIsbugIgnbB+dSCYUxl8L6PwmsyOPFZde2hc1DlTo/xnkOgiTLSyAbHiQ==
 
+"@typescript-eslint/types@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/types/-/types-4.8.1.tgz#23829c73c5fc6f4fcd5346a7780b274f72fee222"
+  integrity sha512-ave2a18x2Y25q5K05K/U3JQIe2Av4+TNi/2YuzyaXLAsDx6UZkz1boZ7nR/N6Wwae2PpudTZmHFXqu7faXfHmA==
+
 "@typescript-eslint/typescript-estree@3.10.1":
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-3.10.1.tgz#fd0061cc38add4fad45136d654408569f365b853"
@@ -2722,6 +2770,20 @@
     semver "^7.3.2"
     tsutils "^3.17.1"
 
+"@typescript-eslint/typescript-estree@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/typescript-estree/-/typescript-estree-4.8.1.tgz#7307e3f2c9e95df7daa8dc0a34b8c43b7ec0dd32"
+  integrity sha512-bJ6Fn/6tW2g7WIkCWh3QRlaSU7CdUUK52shx36/J7T5oTQzANvi6raoTsbwGM11+7eBbeem8hCCKbyvAc0X3sQ==
+  dependencies:
+    "@typescript-eslint/types" "4.8.1"
+    "@typescript-eslint/visitor-keys" "4.8.1"
+    debug "^4.1.1"
+    globby "^11.0.1"
+    is-glob "^4.0.1"
+    lodash "^4.17.15"
+    semver "^7.3.2"
+    tsutils "^3.17.1"
+
 "@typescript-eslint/visitor-keys@3.10.1":
   version "3.10.1"
   resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-3.10.1.tgz#cd4274773e3eb63b2e870ac602274487ecd1e931"
@@ -2729,6 +2791,14 @@
   dependencies:
     eslint-visitor-keys "^1.1.0"
 
+"@typescript-eslint/visitor-keys@4.8.1":
+  version "4.8.1"
+  resolved "https://registry.yarnpkg.com/@typescript-eslint/visitor-keys/-/visitor-keys-4.8.1.tgz#794f68ee292d1b2e3aa9690ebedfcb3a8c90e3c3"
+  integrity sha512-3nrwXFdEYALQh/zW8rFwP4QltqsanCDz4CwWMPiIZmwlk9GlvBeueEIbq05SEq4ganqM0g9nh02xXgv5XI3PeQ==
+  dependencies:
+    "@typescript-eslint/types" "4.8.1"
+    eslint-visitor-keys "^2.0.0"
+
 "@webassemblyjs/ast@1.8.5":
   version "1.8.5"
   resolved "https://registry.yarnpkg.com/@webassemblyjs/ast/-/ast-1.8.5.tgz#51b1c5fe6576a34953bf4b253df9f0d490d9e359"
@@ -3342,6 +3412,11 @@ array-union@^1.0.1:
   dependencies:
     array-uniq "^1.0.1"
 
+array-union@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/array-union/-/array-union-2.1.0.tgz#b798420adbeb1de828d84acd8a2e23d3efe85e8d"
+  integrity sha512-HGyxoOTYUyCM6stUe6EJgnd4EoewAI7zMdfqO+kGjnlZmBDz/cR5pf8r/cR4Wq60sL/p0IkcjUEEPwS3GFrIyw==
+
 array-uniq@^1.0.1:
   version "1.0.3"
   resolved "https://registry.yarnpkg.com/array-uniq/-/array-uniq-1.0.3.tgz#af6ac877a25cc7f74e058894753858dfdb24fdb6"
@@ -6002,6 +6077,13 @@ dir-glob@2.0.0:
     arrify "^1.0.1"
     path-type "^3.0.0"
 
+dir-glob@^3.0.1:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/dir-glob/-/dir-glob-3.0.1.tgz#56dbf73d992a4a93ba1584f4534063fd2e41717f"
+  integrity sha512-WkrWp9GR4KXfKGYzOLmTuGVi1UWFfws377n9cc55/tb6DuqyF6pcQ5AbiHEshaDpY9v6oaSr2XCDidGmMwdzIA==
+  dependencies:
+    path-type "^4.0.0"
+
 dmg-builder@22.3.6:
   version "22.3.6"
   resolved "https://registry.yarnpkg.com/dmg-builder/-/dmg-builder-22.3.6.tgz#2affc0bfb29a49eb35c11d91e5bf7ba32c140fbc"
@@ -6849,6 +6931,11 @@ eslint-visitor-keys@^1.1.0, eslint-visitor-keys@^1.3.0:
   resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-1.3.0.tgz#30ebd1ef7c2fdff01c3a4f151044af25fab0523e"
   integrity sha512-6J72N8UNa462wa/KFODt/PJ3IU60SDpC3QXC1Hjc1BXXpfL2C9R5+AU7jhe0F6GREqVMh4Juu+NY7xn+6dipUQ==
 
+eslint-visitor-keys@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/eslint-visitor-keys/-/eslint-visitor-keys-2.0.0.tgz#21fdc8fbcd9c795cc0321f0563702095751511a8"
+  integrity sha512-QudtT6av5WXels9WjIM7qz1XD1cWGvX4gGXvp/zBn9nXG02D0utdU3Em2m/QjTnrsk6bBjmCygl3rmj118msQQ==
+
 eslint@7.7.0:
   version "7.7.0"
   resolved "https://registry.yarnpkg.com/eslint/-/eslint-7.7.0.tgz#18beba51411927c4b64da0a8ceadefe4030d6073"
@@ -7247,6 +7334,18 @@ fast-glob@^2.0.2:
     merge2 "^1.2.3"
     micromatch "^3.1.10"
 
+fast-glob@^3.1.1:
+  version "3.2.4"
+  resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.2.4.tgz#d20aefbf99579383e7f3cc66529158c9b98554d3"
+  integrity sha512-kr/Oo6PX51265qeuCYsyGypiO5uJFgBS0jksyG7FUeCyQzNwYnzrNIMR1NXfkZXsMYXYLRAHgISHBz8gQcxKHQ==
+  dependencies:
+    "@nodelib/fs.stat" "^2.0.2"
+    "@nodelib/fs.walk" "^1.2.3"
+    glob-parent "^5.1.0"
+    merge2 "^1.3.0"
+    micromatch "^4.0.2"
+    picomatch "^2.2.1"
+
 fast-json-stable-stringify@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/fast-json-stable-stringify/-/fast-json-stable-stringify-2.0.0.tgz#d5142c0caee6b1189f87d3a76111064f86c8bbf2"
@@ -8191,6 +8290,18 @@ globby@8.0.2:
     pify "^3.0.0"
     slash "^1.0.0"
 
+globby@^11.0.1:
+  version "11.0.1"
+  resolved "https://registry.yarnpkg.com/globby/-/globby-11.0.1.tgz#9a2bf107a068f3ffeabc49ad702c79ede8cfd357"
+  integrity sha512-iH9RmgwCmUJHi2z5o2l3eTtGBtXek1OYlHrbcxOYugyHLmAsZrPj43OtHThd62Buh/Vv6VyCBD2bdyWcGNQqoQ==
+  dependencies:
+    array-union "^2.1.0"
+    dir-glob "^3.0.1"
+    fast-glob "^3.1.1"
+    ignore "^5.1.4"
+    merge2 "^1.3.0"
+    slash "^3.0.0"
+
 globby@^6.1.0:
   version "6.1.0"
   resolved "https://registry.yarnpkg.com/globby/-/globby-6.1.0.tgz#f5a6d70e8395e21c858fb0489d64df02424d506c"
@@ -8943,6 +9054,11 @@ ignore@^4.0.6:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-4.0.6.tgz#750e3db5862087b4737ebac8207ffd1ef27b25fc"
   integrity sha512-cyFDKrqc/YdcWFniJhzI42+AzS+gNwmUzOSFcRCQYwySuBBBy/KjuxWLZ/FHEH6Moq1NizMOBWyTcv8O4OZIMg==
 
+ignore@^5.1.4:
+  version "5.1.8"
+  resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.1.8.tgz#f150a8b50a34289b33e22f5889abd4d8016f0e57"
+  integrity sha512-BMpfD7PpiETpBl/A6S498BaIJ6Y/ABT93ETbby2fP00v4EbvPBXWEoaR1UBPKs3iR53pJY7EtZk5KACI57i1Uw==
+
 immediate@~3.0.5:
   version "3.0.6"
   resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
@@ -12265,6 +12381,11 @@ path-type@^3.0.0:
   dependencies:
     pify "^3.0.0"
 
+path-type@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/path-type/-/path-type-4.0.0.tgz#84ed01c0a7ba380afe09d90a8c180dcd9d03043b"
+  integrity sha512-gDKb8aZMDeD/tZWs9P6+q0J9Mwkdl6xMV8TjnGP3qJVJ06bdMgkbBlLU8IdfOsIsFz2BW1rNVT3XuNEl8zPAvw==
+
 path@^0.12.7:
   version "0.12.7"
   resolved "https://registry.yarnpkg.com/path/-/path-0.12.7.tgz#d4dc2a506c4ce2197eb481ebfcd5b36c0140b10f"
@@ -12604,7 +12725,12 @@ prettier-linter-helpers@^1.0.0:
   dependencies:
     fast-diff "^1.1.2"
 
-prettier@1.19.1, prettier@^1.19.1:
+prettier@2.1.2:
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.1.2.tgz#3050700dae2e4c8b67c4c3f666cdb8af405e1ce5"
+  integrity sha512-16c7K+x4qVlJg9rEbXl7HEGmQyZlG4R9AgP+oHKRMsMsuk8s+ATStlf1NpDqyBI1HpVyfjLOeMhH2LvuNvV5Vg==
+
+prettier@^1.19.1:
   version "1.19.1"
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-1.19.1.tgz#f7d7f5ff8a9cd872a7be4ca142095956a60797cb"
   integrity sha512-s7PoyDv/II1ObgQunCbB9PdLmUcBZcnWOcxDh7O0N/UwDEsHyqkW+Qh28jW+mVuCdx7gLB0BotYI1Y6uI9iyew==
@@ -14720,6 +14846,11 @@ slash@^2.0.0:
   resolved "https://registry.yarnpkg.com/slash/-/slash-2.0.0.tgz#de552851a1759df3a8f206535442f5ec4ddeab44"
   integrity sha512-ZYKh3Wh2z1PpEXWr0MpSBZ0V6mZHAQfYevttO11c51CaWjGTaadiKZ+wVt1PbMlDV5qhMFslpZCemhwOK7C89A==
 
+slash@^3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
+  integrity sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==
+
 slice-ansi@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-2.1.0.tgz#cacd7693461a637a5788d92a7dd4fba068e81636"
@@ -16289,11 +16420,6 @@ typeface-inter@3.10.0:
   resolved "https://registry.yarnpkg.com/typeface-inter/-/typeface-inter-3.10.0.tgz#04a55d62e2dc3f60db3afab5d8a547e067692bc6"
   integrity sha512-WuXE+TaJLB8pdMuvIVY3LfT5UQqndR8+Js0xfhNpdXlsEx0Abwd1bzg4w4YWl2eoOmmLYrRpx6UJJ7a7/q6wZQ==
 
-typescript@3.7.4:
-  version "3.7.4"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.7.4.tgz#1743a5ec5fef6a1fa9f3e4708e33c81c73876c19"
-  integrity sha512-A25xv5XCtarLwXpcDNZzCGvW2D1S3/bACratYBx2sax8PefsFhlYmkQicKHvpYflFS8if4zne5zT5kpJ7pzuvw==
-
 typescript@3.8.3:
   version "3.8.3"
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.8.3.tgz#409eb8544ea0335711205869ec458ab109ee1061"