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# to-fast-properties [](https://travis-ci.org/sindresorhus/to-fast-properties)
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> Force V8 to use fast properties for an object
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[Read more.](http://stackoverflow.com/questions/24987896/)
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Use `%HasFastProperties(object)` and `--allow-natives-syntax` to check whether an object already has fast properties.
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## Install
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```
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$ npm install --save to-fast-properties
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```
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## Usage
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```js
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const toFastProperties = require('to-fast-properties');
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const obj = {
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foo: true,
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bar: true
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};
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delete obj.foo;
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// `obj` now has slow properties
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toFastProperties(obj);
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// `obj` now has fast properties
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```
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## License
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MIT © Petka Antonov, Sindre Sorhus
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