I'm Trying to lint an analogjs project created with nx monorepo with this eslint config (i know what the problem in that config because if i delete path to the config from extends array of my root eslint config everything works fine).
Getting an error
ESLint: 9.12.0
TypeError: Cannot read properties of undefined (reading 'at')
Occurred while linting C:\Users\sergd\work\pohorony.by\pohorony.by\packages\analog-app\index.html:2
Rule: "@typescript-eslint/ban-ts-comment"
at Program (C:\Users\sergd\work\pohorony.by\pohorony.by\node_modules\@typescript-eslint\eslint-plugin\dist\rules\ban-ts-comment.js:118:50)
at ruleErrorHandler (C:\Users\sergd\work\pohorony.by\pohorony.by\node_modules\eslint\lib\linter\linter.js:1084:48)
index.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>MyApp</title>
<base href="/" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<link rel="icon" type="image/x-icon" href="/favicon.ico" />
<link rel="stylesheet" href="/src/styles.css" />
</head>
<body>
<analog-app-root></analog-app-root>
<script type="module" src="/src/main.ts"></script>
</body>
</html>
eslint.base.json
{
"env": { "browser": true, "es2021": true, "node": true },
"extends": ["eslint:recommended", "plugin:@typescript-eslint/recommended", "./.eslintrc.angular.json", "prettier"],
"ignorePatterns": ["*dist*"],
"parser": "@typescript-eslint/parser",
"parserOptions": {
"ecmaVersion": "latest",
"project": true,
"sourceType": "module"
},
"plugins": ["@typescript-eslint"],
"overrides": [
{
"files": ["*.ts"],
"rules": {
"@typescript-eslint/array-type": ["error", { "default": "array" }],
"@typescript-eslint/explicit-function-return-type": "error",
"@typescript-eslint/lines-between-class-members": "off",
"@typescript-eslint/no-explicit-any": "off",
"@typescript-eslint/no-non-null-assertion": "off",
"@typescript-eslint/no-unnecessary-type-assertion": "error",
"@typescript-eslint/no-unused-vars": "off",
"block-spacing": ["warn", "always"],
"curly": ["warn", "all"],
"eol-last": "error",
"import/prefer-default-export": "off",
"import/no-unresolved": "error",
"max-len": [
"error",
{
"code": 120,
"ignoreComments": true,
"tabWidth": 2,
"ignoreStrings": true
}
],
"max-lines-per-function": ["error", 80],
"max-classes-per-file": "off",
"no-console": "off",
"no-debugger": "off",
"no-multiple-empty-lines": ["error", { "max": 2, "maxBOF": 0, "maxEOF": 1 }],
"no-param-reassign": ["error", { "props": false }],
"no-plusplus": "off",
"no-return-assign": 1,
"no-restricted-syntax": ["off", "ForInStatement"],
"no-underscore-dangle": "off",
"no-template-curly-in-string": "warn",
"no-unused-vars": "off",
"object-curly-spacing": ["warn", "always"],
"spaced-comment": ["error", "always", { "markers": ["!", "?", "//", "todo", "*"] }],
"class-methods-use-this": "off",
"@typescript-eslint/no-inferrable-types": "off",
"@typescript-eslint/explicit-member-accessibility": [
"error",
{
"accessibility": "explicit",
"overrides": {
"accessors": "explicit",
"constructors": "off",
"methods": "explicit",
"properties": "explicit",
"parameterProperties": "explicit"
}
}
]
}
},
{
"files": ["*.spec.ts", "*.test.ts"],
"rules": {
"max-lines-per-function": "off"
}
}
]
}
.eslintrc.angular.json
{
"overrides": [
{
"files": ["*.ts"],
"extends": ["plugin:@angular-eslint/template/process-inline-templates"],
"rules": {
"@angular-eslint/contextual-lifecycle": "error",
"@angular-eslint/no-async-lifecycle-method": "error",
"@angular-eslint/sort-lifecycle-methods": "error",
"@angular-eslint/no-attribute-decorator": "warn",
"@angular-eslint/component-max-inline-declarations": [
"error",
{
"template": 10,
"styles": 0,
"animations": 40
}
],
"@angular-eslint/consistent-component-styles": "error",
"@angular-eslint/contextual-decorator": "error",
"@angular-eslint/component-class-suffix": "error",
"@angular-eslint/directive-class-suffix": "error",
"@angular-eslint/no-conflicting-lifecycle": "error",
"@angular-eslint/no-duplicates-in-metadata-arrays": "error",
"@angular-eslint/no-empty-lifecycle-method": "error",
"@angular-eslint/no-input-rename": "error",
"@angular-eslint/no-inputs-metadata-property": "error",
"@angular-eslint/no-lifecycle-call": "error",
"@angular-eslint/no-output-native": "error",
"@angular-eslint/no-output-on-prefix": "error",
"@angular-eslint/no-output-rename": "error",
"@angular-eslint/no-outputs-metadata-property": "error",
"@angular-eslint/no-queries-metadata-property": "error",
"@angular-eslint/prefer-on-push-component-change-detection": "error",
"@angular-eslint/prefer-output-readonly": "error",
"@angular-eslint/prefer-standalone": "error",
"@angular-eslint/use-lifecycle-interface": "error",
"@angular-eslint/use-pipe-transform-interface": "error"
}
},
{
"files": ["*.html"],
"rules": {
"@angular-eslint/template/alt-text": "error",
"@angular-eslint/template/no-call-expression": "error",
"@angular-eslint/template/banana-in-box": "warn",
"@angular-eslint/template/button-has-type": "error",
"@angular-eslint/template/elements-content": "error",
"@angular-eslint/template/eqeqeq": "error",
"@angular-eslint/template/interactive-supports-focus": "error",
"@angular-eslint/template/label-has-associated-control": "error",
"@angular-eslint/template/mouse-events-have-key-events": "error",
"@angular-eslint/template/no-inline-styles": [
"error",
{
"allowBindToStyle": true,
"allowNgStyle": true
}
],
"@angular-eslint/template/no-interpolation-in-attributes": "error",
"@angular-eslint/template/no-negated-async": "error",
"@angular-eslint/template/role-has-required-aria": "error"
}
}
]
}
I have tried to remove all the rules and plugin:@typescript-eslint/recommended and everything works fine.
The problem is that you are extending from the plugin:@typescript-eslint/recommended config on root level for all files and not just for the TypeScript files. Because you have configured ESLint to lint the *.html files, ESLint now tries to parse HTML files and to apply TypeScript related rules on them. To fix it, move all TypeScript-specific configuration to the *.ts overrides block in your eslint.base.json:
{
"env": { "browser": true, "es2021": true, "node": true },
"extends": ["eslint:recommended", "./.eslintrc.angular.json", "prettier"],
"ignorePatterns": ["*dist*"],
"overrides": [
{
"files": ["*.ts"],
"extends": ["plugin:@typescript-eslint/recommended"],
"parser": "@typescript-eslint/parser",
"parserOptions": {
"ecmaVersion": "latest",
"project": true,
"sourceType": "module"
},
"plugins": ["@typescript-eslint"],
"rules": {
// your custom rules
}
},
{
"files": ["*.spec.ts", "*.test.ts"],
"rules": {
"max-lines-per-function": "off"
}
}
]
}