imports loader for webpack

Can be used to inject variables into the scope of a module. This is especially useful if third-party modules are relying on global variables like $ or this being the window object.

Installation

npm install imports-loader

Usage

Given you have this file example.js

$("img").doSomeAwesomeJqueryPluginStuff();

then you can inject the $ variable into the module by configuring the imports-loader like this:

require("imports?$=jquery!./example.js");

This simply prepends var $ = require("jquery"); to example.js.

Syntax

Query value	Equals
angular	var angular = require("angular");
$=jquery	var $ = require("jquery");
define=>false	var define = false;
config=>{size:50}	var config = {size:50};
this=>window	(function () { ... }).call(window);

Multiple values

Multiple values are separated by comma ,:

require("imports?$=jquery,angular,config=>{size:50}!./file.js");

webpack.config.js

As always, you should rather configure this in your webpack.config.js:

// ./webpack.config.js

module.exports = {
    ...
    module: {
        loaders: [
            {
                test: require.resolve("some-module"),
                loader: "imports?this=>window"
            }
        ]
};

Documentation: Using loaders

Typical use-cases

jQuery plugins

imports?$=jquery

Custom Angular modules

imports?angular

Disable AMD

There are many modules that check for a define function before using CommonJS. Since webpack is capable of both, they default to AMD in this case, which can be a problem if the implementation is quirky.

Then you can easily disable the AMD path by writing

imports?define=>false

For further hints on compatibility issues, check out Shimming Modules of the official docs.

License

MIT (http://www.opensource.org/licenses/mit-license.php)