Website : rimsha.abasa.com
backdoor
Home
Console
Upload
information
Create File
Create Folder
About
Tools
:
/
var
/
canvas
/
node_modules
/
deep-eql
/
Filename :
README.md
back
Copy
<h1 align=center> <a href="http://chaijs.com" title="Chai Documentation"> <img alt="deep-eql" src="https://raw.githubusercontent.com/chaijs/deep-eql/main/deep-eql-logo.svg"/> </a> </h1> <p align=center> Improved deep equality testing for <a href="http://nodejs.org/">node</a> and the browser. </p> <p align=center> <a href="https://github.com/chaijs/deep-eql/actions"> <img alt="build:?" src="https://github.com/chaijs/deep-eql/workflows/Build/badge.svg" /> </a><a href="https://coveralls.io/r/chaijs/deep-eql"> <img alt="coverage:?" src="https://img.shields.io/coveralls/chaijs/deep-eql/master.svg?style=flat-square" /> </a><a href="https://www.npmjs.com/packages/deep-eql"> <img alt="dependencies:?" src="https://img.shields.io/npm/dm/deep-eql.svg?style=flat-square" /> </a><a href=""> <img alt="devDependencies:?" src="https://img.shields.io/david/chaijs/deep-eql.svg?style=flat-square" /> </a> <br> <a href="https://chai-slack.herokuapp.com/"> <img alt="Join the Slack chat" src="https://img.shields.io/badge/slack-join%20chat-E2206F.svg?style=flat-square" /> </a> <a href="https://gitter.im/chaijs/deep-eql"> <img alt="Join the Gitter chat" src="https://img.shields.io/badge/gitter-join%20chat-D0104D.svg?style=flat-square" /> </a> </p> ## What is Deep-Eql? Deep Eql is a module which you can use to determine if two objects are "deeply" equal - that is, rather than having referential equality (`a === b`), this module checks an object's keys recursively, until it finds primitives to check for referential equality. For more on equality in JavaScript, read [the comparison operators article on mdn](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators). As an example, take the following: ```js 1 === 1 // These are primitives, they hold the same reference - they are strictly equal 1 == '1' // These are two different primitives, through type coercion they hold the same value - they are loosely equal { a: 1 } !== { a: 1 } // These are two different objects, they hold different references and so are not strictly equal - even though they hold the same values inside { a: 1 } != { a: 1 } // They have the same type, meaning loose equality performs the same check as strict equality - they are still not equal. var deepEql = require("deep-eql"); deepEql({ a: 1 }, { a: 1 }) === true // deepEql can determine that they share the same keys and those keys share the same values, therefore they are deeply equal! ``` ## Installation ### Node.js `deep-eql` is available on [npm](http://npmjs.org). $ npm install deep-eql ## Usage The primary export of `deep-eql` is function that can be given two objects to compare. It will always return a boolean which can be used to determine if two objects are deeply equal. ### Rules - Strict equality for non-traversable nodes according to [`Object.is`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/is): - `eql(NaN, NaN).should.be.true;` - `eql(-0, +0).should.be.false;` - All own and inherited enumerable properties are considered: - `eql(Object.create({ foo: { a: 1 } }), Object.create({ foo: { a: 1 } })).should.be.true;` - `eql(Object.create({ foo: { a: 1 } }), Object.create({ foo: { a: 2 } })).should.be.false;` - When comparing `Error` objects, only `name`, `message`, and `code` properties are considered, regardless of enumerability: - `eql(Error('foo'), Error('foo')).should.be.true;` - `eql(Error('foo'), Error('bar')).should.be.false;` - `eql(Error('foo'), TypeError('foo')).should.be.false;` - `eql(Object.assign(Error('foo'), { code: 42 }), Object.assign(Error('foo'), { code: 42 })).should.be.true;` - `eql(Object.assign(Error('foo'), { code: 42 }), Object.assign(Error('foo'), { code: 13 })).should.be.false;` - `eql(Object.assign(Error('foo'), { otherProp: 42 }), Object.assign(Error('foo'), { otherProp: 13 })).should.be.true;` - Arguments are not Arrays: - `eql([], arguments).should.be.false;` - `eql([], Array.prototype.slice.call(arguments)).should.be.true;`