isolated-externals-plugin
Advanced tools
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To install, simply run:
npm install --save-dev isolated-externals-plugin
The IsolatedExternalsPlugin allows you to load external dependencies into the scope of your webpack bundle without having to have them in your global scope. If you're curious about why you might want this, there are some use cases listed below.
The plugin is built as an ES Module, so you'll need to load it in by using the default property:
const IsolatedExternalsPlugin = require('isolated-externals-plugin').default;
It currently only works with UMD javascript dependencies, and with an externals declaration that has a similar shape to this:
...
externals: {
["react-dom"]: "ReactDOM",
react: "React",
},
...
For the externals above, your IsolatedExternalsPlugin configuration might look like the following:
new IsolatedExternalsPlugin({
entryName: {
react: {
url: 'https://unpkg.com/react@16/umd/react.development.js'
},
['react-dom']: {
url: 'https://unpkg.com/react-dom@16/umd/react-dom.development.js'
}
}
});
entryName, in this instance, is the name of one of your webpack Entry Points.
The external files will be loaded and applied to your context in the order that they're listed, so if you have dependencies that depend on other dependencies (like ReactDOM depends on React), then you'll want to make sure you list the ones they depend on first.
IsolatedExternalsPlugin wraps your webpack bundle in a self-calling function, evaluating the external dependencies and your bundle with an in-memory context object. This allows those external dependencies to only exist on that in-memory context, and will not require them to exist on the broader global context.
Here are two valid use cases. There may be others, but these are the reason we built this plugin!:
This package uses semantic-release. Changes will be compiled into a changelog and the package versioned, tagged and published automatically.
Please ensure your commit messages adhere to the following structure:
<type>: <subject>
<BLANK LINE>
<body>
Only the header is mandatory. The supported types are based off of the ESLint Convention.
FAQs
 [](https://badge.fury.io/js/isolated-externals-plugin)
The npm package isolated-externals-plugin receives a total of 424 weekly downloads. As such, isolated-externals-plugin popularity was classified as not popular.
We found that isolated-externals-plugin demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 0 open source maintainers collaborating on the project.
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