fix: only use ?? when appropriate

eslint.config.js

@@ -43,7 +43,12 @@ export default tseslint.config({
         '@typescript-eslint/prefer-promise-reject-errors': 'off',
         '@typescript-eslint/no-extraneous-class': 'off',
         '@typescript-eslint/non-nullable-type-assertion-style': 'off',
-        '@typescript-eslint/prefer-nullish-coalescing': ['error', { ignorePrimitives: { boolean: true } }],
+        '@typescript-eslint/prefer-nullish-coalescing': ['error', {
+            ignorePrimitives: {
+                boolean: true,
+                string: true
+            }
+        }],
         '@typescript-eslint/no-misused-promises': ['error', { checksVoidReturn: false }],
 
         '@stylistic/arrow-parens': ['warn', 'as-needed'],

src/Configuration.ts

@@ -6,7 +6,7 @@ import {
 } from './UserscriptTools/Store';
 import { Flags, flagCategories } from './FlagTypes';
 
-import { FlagNames, displayStacksToast } from './shared';
+import { FlagNames, displayStacksToast, getFlagTypeFromFlagId } from './shared';
 
 import { buildConfigurationOverlay } from './modals/config';
 import { setupCommentsAndFlagsModal } from './modals/comments/main';
@@ -81,7 +81,7 @@ function setupDefaults(): void {
         cacheCategories();
 
         // update default link-only comment!
-        const linkOnly = Store.flagTypes.find(({ id }) => id === 6);
+        const linkOnly = getFlagTypeFromFlagId(6);
         const defaultComment = flagCategories[2].FlagTypes[0].comments?.low;
         if (linkOnly // link only flag type has not been removed
             && defaultComment

src/UserscriptTools/MetaSmokeAPI.ts

@@ -35,7 +35,7 @@ interface MetasmokeWsMessage {
 
 export class MetaSmokeAPI extends Reporter {
     public static accessToken: string;
-    public static isDisabled: boolean = Store.get<boolean>(Cached.Metasmoke.disabled) ?? false;
+    public static isDisabled: boolean = Store.get<boolean>(Cached.Metasmoke.disabled) || false;
 
     public smokeyId: number;
 

src/UserscriptTools/Post.ts

@@ -115,7 +115,7 @@ export default class Post {
         const url = `/flags/posts/${this.id}/add/${flagName}`;
         const data = {
             fkey: StackExchange.options.user.fkey,
-            otherText: text ?? '',
+            otherText: text || '',
             // plagiarism flag: fill "Link(s) to original content"
             // note wrt link: site will always be Stack Overflow,
             //                post will always be an answer.
@@ -501,7 +501,7 @@ export default class Post {
             this.element.dataset.questionid ?? this.element.dataset.answerid
         ) ?? (
             this.type === 'Answer'// flags/NATO/search page: parse the post URL
-                ? new URL(href ?? '').pathname.split('/').pop()
+                ? new URL(href || '').pathname.split('/').pop()
                 : href?.split('/')[4]
         );
 

src/modals/comments/submit.ts

@@ -13,7 +13,7 @@ function saveName(
 ): void {
     const input = card.querySelector<HTMLInputElement>('.s-input__md');
 
-    flagType.displayName = input?.value ?? '';
+    flagType.displayName = input?.value || '';
 }
 
 function saveTextareaContent(
@@ -44,7 +44,7 @@ function saveSwfr(
 ): void {
     // swfr = send when flag raised :)
     const swfrBox = expandable.querySelector<HTMLInputElement>('[id*="-send-when-flag-raised-"');
-    const sendFeedback = swfrBox?.checked ?? false;
+    const sendFeedback = swfrBox?.checked || false;
 
     flagType.sendWhenFlagRaised = sendFeedback;
 
@@ -74,7 +74,7 @@ function saveDownvote(
 ): void {
     const downvote = expandable.querySelector<HTMLInputElement>('[id*="-downvote-post-"');
 
-    flagType.downvote = downvote?.checked ?? false;
+    flagType.downvote = downvote?.checked || false;
 }
 
 function saveFeedbacks(

src/popover.ts

@@ -224,7 +224,7 @@ export class Popover {
 
         // Comment text: ...
         const commentText = this.getCommentText(flagType);
-        const tooltipCommentText = (this.post.deleted ? '' : commentText) ?? '';
+        const tooltipCommentText = (this.post.deleted ? '' : commentText) || '';
 
         // if the flag changed from VLQ to NAA, let the user know why
         const flagName = getFlagToRaise(reportType, this.post.qualifiesForVlq());
@@ -339,7 +339,7 @@ export class Popover {
         const { addAuthorName } = Store.config;
 
         const type = (this.post.opReputation || 0) > 50 ? 'high' : 'low';
-        let comment = comments?.[type] ?? comments?.low;
+        let comment = comments?.[type] || comments?.low;
         if (comment) {
             const sitename = StackExchange.options.site.name || '';
             const siteurl = window.location.hostname;
@@ -354,7 +354,7 @@ export class Popover {
             comment && addAuthorName
                 ? `${this.post.opName}, ${comment[0].toLowerCase()}${comment.slice(1)}`
                 : comment
-        ) ?? null;
+        ) || null;
     }
 
     private async handleReportLinkClick(
@@ -413,7 +413,7 @@ export class Popover {
                 .map(type => {
                     return dropdown.querySelector<HTMLInputElement>(
                         `[id*="-${type}-checkbox-"]`
-                    )?.checked ?? false;
+                    )?.checked || false;
                 });
 
             // comment

src/review.ts

@@ -1,4 +1,4 @@
-import { addProgress, addXHRListener, appendLabelAndBoxes, delay } from './shared';
+import { addProgress, addXHRListener, appendLabelAndBoxes, delay, getFlagTypeFromFlagId } from './shared';
 import { isDone } from './AdvancedFlagging';
 
 import { MetaSmokeAPI } from './UserscriptTools/MetaSmokeAPI';
@@ -118,7 +118,7 @@ export function setupReview(): void {
 
         submit.addEventListener('click', async event => {
             // find the "Not an answer" flag type
-            const flagType = Store.flagTypes.find(({ id }) => id === 7);
+            const flagType = getFlagTypeFromFlagId(7);
             if (!flagType) return; // something went wrong
 
             await addProgress(event, flagType);