How to run typescript-eslint on .ts files and eslint on .js files in the same project in VSCode
Solution 1
You need to override the configuration to use separate parsers for js and ts files. you can configure .eslintrc.js as below
module.exports = {
root: true,
extends: [
'eslint:recommended'
],
"overrides": [
{
"files": ["**/*.ts", "**/*.tsx"],
"env": { "browser": true, "es6": true, "node": true },
"extends": [
"eslint:recommended",
"plugin:@typescript-eslint/eslint-recommended",
"plugin:@typescript-eslint/recommended"
],
"globals": { "Atomics": "readonly", "SharedArrayBuffer": "readonly" },
"parser": "@typescript-eslint/parser",
"parserOptions": {
"ecmaFeatures": { "jsx": true },
"ecmaVersion": 2018,
"sourceType": "module",
"project": "./tsconfig.json"
},
"plugins": ["@typescript-eslint"],
"rules": {
"indent": ["error", 2, { "SwitchCase": 1 }],
"linebreak-style": ["error", "unix"],
"quotes": ["error", "single"],
"comma-dangle": ["error", "always-multiline"],
"@typescript-eslint/no-explicit-any": 0
}
}
]
};
Sample Project is here
Solution 2
Use the overrides prop to have typescript-eslint
's parser and related TS configuration only on .ts/.tsx
files. For example (React, TypeScript, ES2021):
module.exports = {
root: true,
extends: ['eslint:recommended'],
env: {
browser: true,
es2021: true,
},
parserOptions: {
ecmaFeatures: {
jsx: true,
},
ecmaVersion: 12,
sourceType: 'module',
},
overrides: [
{
files: ['**/*.ts', '**/*.tsx'],
plugins: [
'@typescript-eslint',
],
extends: ['eslint:recommended', 'plugin:@typescript-eslint/recommended'],
parser: '@typescript-eslint/parser',
parserOptions: {
project: ['./tsconfig.json'],
},
},
],
};
Ben
Updated on June 30, 2022Comments
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Ben almost 2 years
I have a mixed codebase with javascript and typescript files. I'd like to have eslint run on .js files and typescript-eslint run on .ts files in VSCode.
I've managed to configure my .eslintrc.json file to get typescript-eslint to run on .ts files. The problem is that it also ends up running typescript-eslint on .js files, instead of plain old eslint.
This seems like it should be simple and fairly common, but I haven't been able to find a solution despite searching all over the internet.
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M-N over 4 yearsYou can have different .eslintrc files in different directories. You can also include an "overrides" rule set for files in *.ts or *.js. See eslint.org/docs/user-guide/configuring#configuring-eslint.
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Jason Turan about 4 yearsThanks for the tip! I was struggling with this for a while.
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writofmandamus almost 2 yearsIn the example in the
files
override it mixes js and ts files: github.com/techatpark/npm-scripts-static-ref/blob/…