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@babel/register

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@babel/register

babel require hook


Version published
Weekly downloads
8M
decreased by-5.3%
Maintainers
4
Weekly downloads
 
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What is @babel/register?

The @babel/register npm package is a Babel hook that automatically compiles files on the fly when they are required. It is primarily used during development to compile JavaScript files using Babel as soon as they are imported, which allows developers to write modern JavaScript without worrying about compatibility with the current Node.js environment.

What are @babel/register's main functionalities?

On-the-fly ES6/ESNext compilation

Automatically compiles ES6/ESNext files when they are required. This allows you to use new JavaScript features without pre-compiling your code.

require('@babel/register');
require('./my-es6-script.js');

Custom Babel configurations

Allows you to specify custom Babel configurations, such as presets and plugins, to be applied when compiling your JavaScript files.

require('@babel/register')({
  presets: ['@babel/preset-env'],
  plugins: ['@babel/plugin-transform-runtime']
});
require('./my-custom-babel-config-script.js');

Ignore specific files or directories

Provides an option to ignore specific files or directories during the compilation process, which can improve performance by skipping unnecessary files.

require('@babel/register')({
  ignore: [/node_modules/]
});
require('./my-script.js');

Source map support

Supports inline source maps, which can be useful for debugging by allowing you to trace back to the original source code.

require('@babel/register')({
  sourceMaps: 'inline'
});
require('./my-script-with-source-maps.js');

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Package last updated on 02 Oct 2024

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