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[6a3a178] | 1 | # to-fast-properties [![Build Status](https://travis-ci.org/sindresorhus/to-fast-properties.svg?branch=master)](https://travis-ci.org/sindresorhus/to-fast-properties)
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| 2 |
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| 3 | > Force V8 to use fast properties for an object
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| 4 |
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| 5 | [Read more.](http://stackoverflow.com/questions/24987896/)
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| 6 |
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| 7 | Use `%HasFastProperties(object)` and `--allow-natives-syntax` to check whether an object already has fast properties.
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| 8 |
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| 9 |
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| 10 | ## Install
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| 11 |
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| 12 | ```
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| 13 | $ npm install --save to-fast-properties
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| 14 | ```
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| 15 |
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| 16 |
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| 17 | ## Usage
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| 18 |
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| 19 | ```js
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| 20 | const toFastProperties = require('to-fast-properties');
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| 21 |
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| 22 | const obj = {
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| 23 | foo: true,
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| 24 | bar: true
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| 25 | };
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| 26 |
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| 27 | delete obj.foo;
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| 28 | // `obj` now has slow properties
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| 29 |
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| 30 | toFastProperties(obj);
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| 31 | // `obj` now has fast properties
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| 32 | ```
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| 33 |
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| 34 |
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| 35 | ## License
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| 36 |
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| 37 | MIT © Petka Antonov, John-David Dalton, Sindre Sorhus
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