Typescript errors not showing in VSCode editor using typescript-eslint

user_12838392 0
Viewed 8856

My issue is that I cannot display typescript errors in editor using eslint and @typescript-eslint (on VSCode for MacOs).

Eslint errors are showing but not type errors as shown on this screenshot (tsx file) example of type error not showing

Here the issue about unused variable is displayed but the type error when calling typedFunction is not. If I run tsc in my terminal the error will raise.

Eslint extension is installed my VSCode editor. Here is my .eslintrc :

{
  "parser": "@typescript-eslint/parser",
  "extends": [
    "plugin:@typescript-eslint/recommended",
    "react-app",
    "prettier",
    "prettier/@typescript-eslint",
    "prettier/react"
  ],
  "plugins": [
    "import",
    "prefer-object-spread",
    "prettier",
    "react",
    "@typescript-eslint"
  ],
  "env": {
    "browser": true,
    "es6": true,
    "node": true
  },
  "globals": {
    "alert": true,
    "document": true,
    "localStorage": true,
    "navigator": true,
    "window": true,
    "HTMLElement": true
  },
  "rules": {
    "prettier/prettier": "error",
    "import/extensions": 0,
    "import/no-extraneous-dependencies": [
      "error",
      {
        "devDependencies": true,
        "optionalDependencies": false,
        "peerDependencies": false
      }
    ],
    "import/no-unresolved": 0,
    "import/prefer-default-export": 0,
    "prefer-object-spread/prefer-object-spread": 2,
    "react/destructuring-assignment": 0,
    "react/jsx-filename-extension": [1, { "extensions": [".ts", ".tsx"] }],
    "react/no-array-index-key": 2,
    "react/prefer-stateless-function": 0,
    "react/prop-types": 0,
    "react/require-default-props": 0,
    "@typescript-eslint/explicit-function-return-type": 0,
    "@typescript-eslint/explicit-member-accessibility": 0,
    "@typescript-eslint/camelcase": 0,
    "@typescript-eslint/interface-name-prefix": 0,
    "complexity": ["error", 8],
    "max-lines": ["error", 200],
    "max-depth": ["error", 3],
    "max-params": ["error", 4]
  }
}

I tried removing all VSCode extensions, uninstalling VSCode, reboot my computer but nothing worked. My VSCode version is 1.46.0

eslint visual-studio-code typescript
3 Answers

In your VSC's Extensions panel, type "@builtin" and look for "TypeScript and JavaScript Language Features" in the "Features" section. It is most probably disabled. Enable it and restart your VSC. As suggested by Matt Bierner from here.

user_74500930
user_113629380

You need to add a tsconfig.json file to your project, it would work. Something like this

{
  "exclude": ["node_modules", "node_modules/**/*"],
  "compilerOptions": {
    "baseUrl": "./",
    "lib": ["es5", "es6", "dom", "es2018.promise"],
    "target": "es6",
    "module": "commonjs",
    "moduleResolution": "node",
    "outDir": "./build",
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "sourceMap": false,
    "strict": true,
    "strictPropertyInitialization": false,
    "skipLibCheck": true, 
    "suppressImplicitAnyIndexErrors": true
  }
}
user_90261030
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