@wry/equality

What is @wry/equality?

@wry/equality is a lightweight JavaScript library designed to perform deep equality checks. It is particularly useful for comparing complex objects and arrays to determine if they are equivalent in value.

What are @wry/equality's main functionalities?

Deep Equality Check

This feature allows you to perform deep equality checks between two objects or arrays. The `equal` function will return `true` if the objects or arrays have the same structure and values.

const { equal } = require('@wry/equality');
const obj1 = { a: 1, b: { c: 2 } };
const obj2 = { a: 1, b: { c: 2 } };
console.log(equal(obj1, obj2)); // true

Shallow Equality Check

This feature allows you to perform shallow equality checks between two arrays. The `equal` function will return `true` if the arrays have the same elements in the same order.

const { equal } = require('@wry/equality');
const arr1 = [1, 2, 3];
const arr2 = [1, 2, 3];
console.log(equal(arr1, arr2)); // true

Other packages similar to @wry/equality

lodash.isequal

Lodash's `isEqual` function provides deep equality checks similar to @wry/equality. It is part of the larger Lodash utility library, which offers a wide range of utility functions for JavaScript. While `lodash.isequal` is more feature-rich, it also comes with the overhead of the entire Lodash library.

fast-deep-equal

The `fast-deep-equal` package is another lightweight library for deep equality checks. It is known for its performance and minimalistic approach, making it a good alternative to @wry/equality for projects that require high performance.

deep-equal

The `deep-equal` package is a popular choice for deep equality checks. It is robust and well-maintained, offering similar functionality to @wry/equality. However, it may not be as lightweight as @wry/equality.

README

@wry/equality

Structural equality checking for JavaScript values, with correct handling of cyclic references, and minimal bundle size.