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@typescript-eslint/typescript-estree

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@typescript-eslint/typescript-estree

A parser that converts TypeScript source code into an ESTree compatible form

6.3.0
Source
npm

Version published: last year

Maintainers: 2

Created: 6 years ago

What is @typescript-eslint/typescript-estree?

The @typescript-eslint/typescript-estree package is a parser that converts TypeScript source code into an ESTree-compatible form. It is primarily used in the context of ESLint to enable linting of TypeScript code by converting TypeScript syntax into a format that ESLint can understand and work with.

What are @typescript-eslint/typescript-estree's main functionalities?

Parsing TypeScript code to ESTree

This feature allows you to parse TypeScript code and get an Abstract Syntax Tree (AST) that is compatible with ESTree. This is useful for tools that need to analyze or manipulate the syntax of TypeScript code.

const tsEStree = require('@typescript-eslint/typescript-estree');
const code = 'let x: number = 1;';
const ast = tsEStree.parse(code, { jsx: false });
console.log(ast);

Parsing TypeScript code with JSX

This feature is similar to the previous one but includes support for JSX syntax, which is commonly used in React applications. It allows the parser to correctly interpret JSX elements within TypeScript code.

const tsEStree = require('@typescript-eslint/typescript-estree');
const code = '<div>Hello, TypeScript!</div>';
const ast = tsEStree.parse(code, { jsx: true });
console.log(ast);

Parsing a file

This feature allows you to parse the contents of a TypeScript file by reading the file and then parsing the code. It is useful when you want to analyze or lint a file directly.

const tsEStree = require('@typescript-eslint/typescript-estree');
const fs = require('fs');
const filePath = './example.ts';
const code = fs.readFileSync(filePath, 'utf8');
const ast = tsEStree.parse(code, { filePath });
console.log(ast);

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