Disable no-undefined ESLint lint

assets/eslint.config.js

@@ -181,7 +181,7 @@ export default tsEslint.config(
       'no-trailing-spaces': 2,
       'no-undef-init': 2,
       'no-undef': 2,
-      'no-undefined': 2,
+      'no-undefined': 0,
       'no-underscore-dangle': 0,
       'no-unexpected-multiline': 2,
       'no-unmodified-loop-condition': 2,

assets/js/query/parse.ts

@@ -17,7 +17,7 @@ export function parseTokens(lexicalArray: TokenList): AstMatcher {
       const op2 = operandStack.pop();
       const op1 = operandStack.pop();
 
-      if (typeof op1 === 'undefined' || typeof op2 === 'undefined') {
+      if (op1 === undefined || op2 === undefined) {
         throw new ParseError('Missing operand.');
       }
 
@@ -43,7 +43,7 @@ export function parseTokens(lexicalArray: TokenList): AstMatcher {
 
   const op1 = operandStack.pop();
 
-  if (typeof op1 === 'undefined') {
+  if (op1 === undefined) {
     return matchNone();
   }
 

assets/js/utils/assert.ts

@@ -7,7 +7,6 @@ export function assertNotNull<T>(value: T | null): T {
 }
 
 export function assertNotUndefined<T>(value: T | undefined): T {
-  // eslint-disable-next-line no-undefined
   if (value === undefined) {
     throw new Error('Expected non-undefined value');
   }

assets/js/utils/tag.ts

@@ -45,7 +45,7 @@ export function getSpoileredTags(): TagData[] {
 
 export function imageHitsTags(img: HTMLElement, matchTags: TagData[]): TagData[] {
   const imageTagsString = img.dataset.imageTags;
-  if (typeof imageTagsString === 'undefined') {
+  if (imageTagsString === undefined) {
     return [];
   }
   const imageTags = JSON.parse(imageTagsString);

assets/js/utils/unique-heap.ts

@@ -24,7 +24,7 @@ export class UniqueHeap<T> {
     const key = this.unique(value);
     const prevIndex = this.keys.get(key);
 
-    if (typeof prevIndex === 'undefined') {
+    if (prevIndex === undefined) {
       this.keys.set(key, this.length);
       this.values[this.length++] = value;
     } else if (forceReplace) {