@typescript-eslint/parser

Parsing TypeScript code

This feature allows the parser to read TypeScript files and produce an abstract syntax tree (AST) that is compatible with ESLint, enabling it to understand and lint TypeScript syntax.

const { ESLint } = require('eslint');

async function main() {
  const eslint = new ESLint({
    parser: '@typescript-eslint/parser',
    parserOptions: {
      ecmaVersion: 2020,
      sourceType: 'module',
      project: './tsconfig.json'
    }
  });

  const results = await eslint.lintFiles(['src/**/*.ts']);
  // Handle the results
}

main();

Integration with ESLint rules

The parser can be used in conjunction with ESLint rules, including those specifically designed for TypeScript, to enforce code quality and style guidelines.

module.exports = {
  parser: '@typescript-eslint/parser',
  extends: [
    'plugin:@typescript-eslint/recommended'
  ],
  rules: {
    '@typescript-eslint/no-unused-vars': 'error',
    '@typescript-eslint/explicit-function-return-type': 'warn'
  }
};