@babel/cli
Advanced tools
The @babel/cli package is a command-line interface for Babel, a widely used JavaScript compiler. It allows developers to compile their JavaScript files using Babel directly from the command line. This package is particularly useful for compiling modern JavaScript down to a version that is compatible with older browsers or environments. It supports various functionalities such as file transformation, watching files for changes, and outputting the compiled code.
File Transformation
This feature allows you to transform a single JavaScript file. The command takes an input file (src/index.js) and compiles it into an output file (compiled.js).
babel src/index.js --out-file compiled.jsDirectory Transformation
Transforms all JavaScript files in a directory. This command compiles all files in the 'src' directory and outputs the compiled files into the 'lib' directory.
babel src --out-dir libWatch Mode
Automatically recompiles files when they change. This command watches all files in the 'src' directory for changes and recompiles them to the 'lib' directory whenever any file is modified.
babel src --watch --out-dir libTypeScript is a superset of JavaScript that compiles down to plain JavaScript. It offers type checking and is aimed at the development of large applications. While TypeScript provides its own compiler, it serves a slightly different purpose than @babel/cli but overlaps in the sense that both compile code to JavaScript.
Webpack is a static module bundler for JavaScript applications. It processes applications and bundles them into one or more bundles. It can be configured to use Babel through loaders (e.g., babel-loader) for compiling JavaScript. Webpack offers a broader range of functionalities compared to @babel/cli, including bundling, asset management, and optimization features.
Rollup is another module bundler for JavaScript which focuses on the efficiency of the final bundles. Similar to Webpack, it can integrate with Babel to compile JavaScript files. Rollup is often preferred for library development due to its efficient bundling strategy. It provides similar compilation features when used with Babel but is more focused on the bundling aspect.
Babel command line.
See our website @babel/cli for more information or the issues associated with this package.
Using npm:
npm install --save-dev @babel/cli
or using yarn:
yarn add @babel/cli --dev
v7.25.9 (2024-10-22)
babel-parser, babel-template, babel-types
syntacticPlaceholders mode (@liuxingbaoyu)babel-helper-compilation-targets, babel-preset-env
ClassAccessorProperty to prevent the no-undef rule (@victorenator)babel-parser, babel-types
VISITOR_KEYS etc. faster to access (@liuxingbaoyu)FAQs
Babel command line.
The npm package @babel/cli receives a total of 1,616,880 weekly downloads. As such, @babel/cli popularity was classified as popular.
We found that @babel/cli demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
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