One that the means you can use Babel is v the require hook. The require hookwill bind itself to node"s require and automatically compile records on thefly. This is equivalent to CoffeeScript"scoffee-script/register.

You are watching: Failed to load external module babel register


npm download
babel/register");All subsequent documents required through node through the extensions .es6, .es, .jsx,.mjs, and .js will certainly be reinvented by Babel.

Polyfill not consisted of

girlfriend must encompass the polyfill individually when using functions that call for it, choose generators.

Ignores node_modules by default

NOTE: by default all requires to node_modules will certainly be ignored. Friend canoverride this by pass an neglect regex via:

babel/register")( // This will override `node_modules` skip - you can additionally pass // an array of strings to be explicitly matched or a regex / glob ignore: <>,);

Specifying options

babel/register")( // array of disregard conditions, one of two people a regex or a function. (Optional) // file paths the match any type of condition room not compiled. Ignore: < // once a file path matches this regex climate it is **not** compiled /regex/, // The file"s route is additionally passed to any type of ignore functions. It will certainly // **not** it is in compiled if `true` is returned. Function(filepath) return filepath !== "/path/to/es6-file.js"; , >, // range of accept conditions, one of two people a regex or a function. (Optional) // file paths that match all problems are compiled. Only: < // record paths the **don"t** match this regex space not compiled /my_es6_folder/, // document paths the **do not** return true are not compiled function(filepath) return filepath === "/path/to/es6-file.js"; , >, // setup this will remove the at this time hooked extensions of `.es6`, `.es`, `.jsx`, `.mjs` // and .js so you"ll have actually to include them earlier if you desire them to be provided again. Extensions: <".es6", ".es", ".jsx", ".js", ".mjs">, // setting this come false will certainly disable the cache. Cache: true,);You have the right to pass in every other choices as well, consisting of plugins and presets.Note the config files will also be loaded and also the programmaticconfig will certainly be merged over height of the file config options.
babel/register will save to a json cache in yourtemporary directory.

This will greatly improve through the startup and also compilation of your files. Thereare but scenarios where you want to change this behaviour and also there areenvironment variables exposed to permit you to carry out this.


Specify a different cache location.

BABEL_CACHE_PATH=/foo/my-cache.json babel-node script.js


Disable the cache.

BABEL_DISABLE_CACHE=1 babel-node script.js

Compiling plugins and presets top top the fly

babel/register uses Node"s require() hook device to translate in fileson the fly when they room loaded. When this is quite valuable overall, it meansthat there can be confusing cases where password within a require() hook causesmore calls come require, resulting in a exposed cycle. In Babel"s case forinstance, this could mean that in the process of Babel trying to compile auser"s file, Babel could end up trying come compile itself as the is loading.

To protect against this problem, this module explicitly disallows re-entrant compilation,e.g. Babel"s own compilation logic clearly cannot trigger further compilationof any other records on the fly. The downside of this is the if you want todefine a plugin or preset the is chin live-compiled, the process iscomplicated.

The crux of it is the your very own code demands to pack the plugin/preset first.Assuming the plugin/preset loads every one of its dependencies increase front, what you"llwant to perform is:

babel/register")( // ...);require("./my-plugin");Because the is your own code that prompted the load, and not the logic within
babel/register itself, this should properly compile any type of plugin/presetthat lots synchronously.

See more: Watch Beauty And The Beast 2017 Online Free Movie Free Online

babel/register walk not support compiling native Node.js ES modules top top the fly, since at this time there is no stable API for intercepting ES modules loading.