Require with an expression.
npm install require-contextUsing npm:
``shell`
$ npm i -g npm
$ npm i --save require-context
In Node.js:
`js
// Load globally into all modules.
require('require-context/register')
// Load locally as a function.
var requireContext = require('require-context');
`
It allows you to pass in a directory to search, a flag indicating whether
subdirectories should be searched too, and a regular expression to match files against.
The syntax is as follows:
`js`
require.context(directory, useSubdirectories = false, regExp = /^\.\//)
Examples
`js.test.js
require.context("./test", false, /\.test\.js$/);
// a context with files from the test directory that can be required with a request endings with .`js.stories.js
require.context("../", true, /\.stories\.js$/);
// a context with all files in the parent folder and descending folders ending with .`
A context module exports a (require) function that takes one argument: the request.
The exported function has 3 properties: resolve, keys, id.
* resolve is a function and returns the module id of the parsed request.keys
* is a function that returns an array of all possible requests that the context module can handle.
This can be useful if you want to require all files in a directory or matching a pattern, Example:
`js
function importAll (r) {
r.keys().forEach(r);
}
importAll(require.context('../components/', true, /\.js$/));
``
* Take the hassle out of requiring groups of modules
* Write cross-platform code between webpack and node