deep-equal
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Package description
The deep-equal npm package is a library for performing deep equality checks between two values. It is useful for comparing objects, arrays, and other nested structures to determine if they are equivalent in structure and content, regardless of whether they are the same reference in memory.
Deep comparison of objects and arrays
This feature allows you to compare objects and arrays to see if they are structurally identical, even if they are different instances.
const deepEqual = require('deep-equal');
const obj1 = { a: 1, b: { c: 1 } };
const obj2 = { a: 1, b: { c: 1 } };
console.log(deepEqual(obj1, obj2)); // trueComparison with custom options
This feature allows you to specify options for the comparison, such as strict mode, which requires the values to be of the same type as well.
const deepEqual = require('deep-equal');
const obj1 = { a: 1 };
const obj2 = { a: '1' };
const options = { strict: true };
console.log(deepEqual(obj1, obj2, options)); // falseLodash provides a method called isEqual which can perform deep comparisons between two values. It is part of the larger Lodash utility library, which offers a wide range of functions for manipulating and comparing data.
This package offers a fast deep equality comparison algorithm. It is known for its performance and is a good choice when speed is a critical factor.
Underscore.js provides an isEqual function that is similar to Lodash's isEqual. It is part of the Underscore utility library, which is a smaller and more focused alternative to Lodash.
Changelog
v2.2.3 - 2023-11-08
c90525fe02cadb@ljharb/eslint-config, auto-changelog, aud, eslint, set-publish-latest, tape 11bd45b.github from default branch 58885d3b0bca9anyc for coverage e25bc371d58c6eBuffer.from when available f0d4a42has-proto 0263fb9is-arguments, is-date-object, is-regex, object-is, regexp.prototype.flags 80c15caengines.node e1d08a8npmignore to autogenerate an npmignore file e0770e5is-date-object, is-regex, object-is, regexp.prototype.flags e4fb8c63798ff4call-bind, regexp.prototype.flags, which-typed-array 540e3a1eslint, @ljharb/eslint-config, tape 0f8ca75197a220object.getownpropertydescriptors, tape 21851a6semver, tape dd440b2engines.node e158993.gitignore from default branch 6ee186bget-intrinsic 6da4b86tape 6ada1abtape 270d34ba269c18030a63fwhich-typed-array 2f0c327Buffer.from when it has a length of > 1 f7e5776Readme
Node's assert.deepEqual() algorithm as a standalone module, that also works in browser environments.
It mirrors the robustness of node's own assert.deepEqual and is robust against later builtin modification.
var equal = require('deep-equal');
console.dir([
equal(
{ a : [ 2, 3 ], b : [ 4 ] },
{ a : [ 2, 3 ], b : [ 4 ] }
),
equal(
{ x : 5, y : [6] },
{ x : 5, y : 6 }
)
]);
var deepEqual = require('deep-equal')
Compare objects a and b, returning whether they are equal according to a recursive equality algorithm.
If opts.strict is true, use strict equality (===) to compare leaf nodes.
The default is to use coercive equality (==) because that's how assert.deepEqual() works by default.
With npm do:
npm install deep-equal
With npm do:
npm test
FAQs
node's assert.deepEqual algorithm
The npm package deep-equal receives a total of 16,190,720 weekly downloads. As such, deep-equal popularity was classified as popular.
We found that deep-equal demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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