discuss.babeljs.io

babeljs.io

Options · Babel

http://babeljs.io/docs/usage/options

Options for babel transpiling. Babel - name =. Filename for use in errors etc. A set of plugins) to load and use. To load and use. ANSI highlight syntax error code frames. Regex, or mixed array of both, matching paths to only. Compile. Can also be an array of arrays containing paths to explicitly match. When attempting to compile a non-matching file it’s returned verbatim. Attach a comment before all non-user injected code. Attach a comment after all non-user injected code. If truthy, adds a. Do not incl...

babeljs.io

API · Babel

http://babeljs.io/docs/usage/api

How to use the Node.js API. Babeltransform(code, [ options. Transforms the passed in. Returning an object with the generated code, source map, and AST. Code, map, ast }. BabeltransformFile(filename, [ options. Asynchronously transforms the entire contents of a file. Code, map, ast }. BabeltransformFileSync(filename, [ options. Returns the transformed contents of the. Code, map, ast }. BabeltransformFromAst(ast, [code], [ options. Given, an AST. If (true) return;". V6x Distributed under MIT License.

babeljs.io

Polyfill · Babel

http://babeljs.io/docs/usage/polyfill

How to use the Polyfill. Babel includes a polyfill that includes a custom regenerator runtime. This will emulate a full ES2015 environment and is intended to be used in an application rather than a library/tool. This polyfill is automatically loaded when using. This means you can use new built-ins like. And generator functions (provided you use the regenerator. Plugin). The polyfill adds to the global scope as well as native prototypes like. In order to do this. Npm install - save-dev babel-polyfill.

babeljs.io

Learn ES2015 · Babel

http://babeljs.io/docs/learn-es2015

A detailed overview of ECMAScript 2015 features. Based on Luke Hoban's es6features repo. This document was originally taken from Luke Hoban's excellent es6features. Repo Go give it a star on GitHub! Be sure to try these features out in the online REPL. ECMAScript 2015 is an ECMAScript standard that was ratified in June 2015. See the ES2015 standard. For full specification of the ECMAScript 2015 language. Arrows and Lexical This. Arrows are a function shorthand using the. Returns: [4, 8, 15, 16, 23, 42].

babeljs.io

Require Hook · Babel

http://babeljs.io/docs/usage/require

How to use the require hook. One of the ways you can use Babel is through the require hook. The require hook will bind itself to node’s. And automatically compile files on the fly. This is equivalent to CoffeeScript’s coffee-script/register. All subsequent files required by node with the extensions. Will be transformed by Babel. You must include the polyfill. Separately when using features that require it, like generators. By default all requires to. Ignore can also be specified as a function. Foo/my-cac...

babeljs.io

CLI · Babel

http://babeljs.io/docs/usage/cli

How to use the CLI tools. Babel comes with a built-in CLI which can be used to compile files from the command line. Install Babel CLI globally on your machine, it’s much better to install it locally. There are two primary reasons for this. Different projects on the same machine can depend on different versions of Babel allowing you to update one at a time. It means you do not have an implicit dependency on the environment you are working in. Making your project far more portable and easier to setup.

babeljs.io

Using Babel · Babel

https://babeljs.io/docs/setup

How to use Babel with your tool of choice. Choose your tool (try CLI). Compiling in the browser has a fairly limited use case, so if you are working on a production site you should be precompiling your scripts server-side. See setup build systems. You can use babel/babel-standalone. As a precompiled version of babel or run a bundler on babel yourself. You can also use the many online tools to prototype a script:. Online Editors that run Babel for you:. There are two primary reasons for this. Unix systems...

babeljs.io

Plugins · Babel

https://babeljs.io/docs/advanced/plugins

Babel is a compiler. At a high level, it has 3 stages that it runs code in: parsing, transforming, and generation (like many other compilers). For an awesome/simple tutorial on compilers, check out the-super-tiny-compiler. Which also explains how Babel itself works on a high level. Now, out of the box Babel doesn’t do anything. It basically acts like. Const babel = code = code;. By parsing the code and then generating the same code back out again. Don’t know where to start? Check out some of our presets.

github.com

GitHub - babel/babel: Babel is a compiler for writing next generation JavaScript.

https://github.com/6to5/6to5

Babel is a compiler for writing next generation JavaScript. Use Git or checkout with SVN using the web URL. Aug 18, 2016. Set sourceRoot in babel-register transform (. Failed to load latest commit information. Link to new AST spec location (. Jun 22, 2016. Add support for the new declare module.exports of flow. (. Aug 16, 2016. Set sourceRoot in babel-register transform (. Aug 18, 2016. Babel types docs (. Jun 27, 2016. Add 10s timeout to mocha tests. Nov 10, 2015. Remove duplicate insert final newline.

babeljs.io

FAQ · Babel

http://babeljs.io/docs/faq

Frequently Asked Questions and Answers. Why is the output of. So verbose and ugly? This is necessary in order to comply with the spec as an iterators. Method must be called on errors. An alternative is to enable loose mode. But please note that there are many. Caveats to be aware of if you enable loose mode and that you’re willingly choosing to be spec incompliant. Being remapped in arrow functions? Arrow functions are not. Synonymous with normal functions. Inside arrow functions reference their. Babel 6...