The @babel/generator package is a part of the Babel toolchain that is responsible for generating code from an Abstract Syntax Tree (AST). It takes an AST as input and turns it into code with source maps, if desired. This is particularly useful when you want to transform code using Babel and then generate the transformed code.

What are @babel/generator's main functionalities?

Code Generation from AST

This feature allows you to generate code from an AST. The code sample demonstrates parsing a piece of code into an AST and then generating the code back from the AST.

const { parse } = require('@babel/parser');
const generate = require('@babel/generator').default;
const code = 'let a = 1;';
const ast = parse(code);
const output = generate(ast, {}, code);
console.log(output.code);

Source Map Support

This feature enables the generation of source maps along with the generated code. The code sample shows how to generate a source map for the code that is being generated from an AST.

const { parse } = require('@babel/parser');
const generate = require('@babel/generator').default;
const code = 'let a = 1;';
const ast = parse(code);
const output = generate(ast, { sourceMaps: true }, code);
console.log(output.map);

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Readme

Source

@babel/generator

Turns an AST into code.

See our website @babel/generator for more information or the issues associated with this package.

Install

Using npm:

npm install --save-dev @babel/generator

or using yarn:

yarn add @babel/generator --dev

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Last updated on 20 Apr 2021

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