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to-fast-properties

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    to-fast-properties

Force V8 to use fast properties for an object


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Weekly downloads
37M
decreased by-1.47%
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1
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4.78 kB
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Package description

What is to-fast-properties?

The `to-fast-properties` npm package is designed to optimize objects for faster property access. This is particularly useful in scenarios where an object is frequently accessed and performance is critical. It forces V8 (the JavaScript engine behind Node.js and Google Chrome) to store the object in a 'fast properties' mode, which can significantly speed up property access on that object.

What are to-fast-properties's main functionalities?

Optimizing object property access

This feature allows you to optimize an object for faster property access by converting it to use fast properties. The code sample demonstrates how to apply `to-fast-properties` to an object to enhance its property access speed.

"use strict";\nconst toFastProperties = require('to-fast-properties');\n\nconst obj = { a: 1, b: 2 };\ntoFastProperties(obj);\n\n// Now `obj` is optimized for faster property access"

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to-fast-properties

Force V8 to use fast properties for an object

Read more.

Use %HasFastProperties(object) and --allow-natives-syntax to check whether an object already has fast properties.

Install

$ npm install to-fast-properties

Usage

import toFastProperties from 'to-fast-properties';

const object = {
	foo: true,
	bar: true
};

delete object.foo;
// `object` now has slow properties

toFastProperties(object);
// `object` now has fast properties

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Last updated on 08 Aug 2021

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