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Sep 14, 2021
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docs(plugins): clean up webpack 4 related content #5447

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4 changes: 1 addition & 3 deletions src/content/plugins/ignore-plugin.mdx
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Expand Up @@ -8,6 +8,7 @@ contributors:
- EugeneHlushko
- FadySamirSadek
- iamakulov
- chenxsan
---

IgnorePlugin prevents the generation of modules for `import` or `require` calls matching the regular expressions or filter functions:
Expand All @@ -19,14 +20,11 @@ IgnorePlugin prevents the generation of modules for `import` or `require` calls

```javascript
new webpack.IgnorePlugin({ resourceRegExp, contextRegExp });
// Supported in webpack 4 and earlier, unsupported in webpack 5:
new webpack.IgnorePlugin(resourceRegExp, [contextRegExp]);
```

## Using filter functions

- `checkResource (resource, context)` A Filter function that receives `resource` and `context` as arguments, must return boolean.
- `checkContext (context)` was **removed in webpack 5** as `checkResource` already gets context.

```javascript
new webpack.IgnorePlugin({
Expand Down