check-equal

A TypeScript library for checking whether two objects are equal (includes type), objects can be array/string/number/JSON/function, etc.

Install

• npm

  npm install @rinxun/check-equal --save

• yarn

  yarn add @rinxun/check-equal --save

Usage

• Import

  import { checkEqual } from 'check-equal'

• Require

  const { checkEqual } = require('check-equal')

API

• checkEqual(a, b, strictMode)
  • a and b are two objects for checking, they can be array/string/number/JSON/function, etc.
  • strictMode defaults to true, if true we check by === internally, otherwise, we check by ==. Furthermore, if false we will ignore item order when checking arrays.

Example

//Check two numbers

checkEqual(1, 1) //true

checkEqual(1, 2) //false

checkEqual(1.2, 1.2) //true

//Check two strings

checkEqual('1', '1') //true

checkEqual('1', '2') //false

checkEqual('Tom', 'Jerry') //false

//Check different types with strict mode

checkEqual('1', 1) //false

checkEqual('false', false) //false

//Check different types without strict mode

checkEqual('1', 1, false) //true

checkEqual(null, undefined, false) //true

//Check two booleans

checkEqual(true, true) //true

checkEqual(true, false) //false

//Check two arrays (will sort array items automatically, ignore the array which has different types)

checkEqual([1, 2, 3], [1, 2, 3]) //true

checkEqual([1, 2, 3], [3, 1, 2], false) //true

checkEqual([1, 2, 3], [3, 1, 2], true) //false

checkEqual([1, 2, 3], [1, 2]) //false (different length)

checkEqual(['a', 'b', 'c'], ['a', 'b', 'c']) //true

checkEqual(['a', 'b', 'c'], ['b', 'c', 'a']) //true

checkEqual(['a', 'b', 'c'], ['a', 'B', 'c']) //false

//Check two Objects

checkEqual(
  { a: '1', b: 2, c: false, d: [1, 3, 5, 7], e: { x: 'x', y: 'y' } },

  { a: '1', b: 2, c: false, d: [1, 3, 5, 7], e: { x: 'x', y: 'y' } }
) //true

checkEqual(
  { a: '1', b: 2, c: false, d: [3, 7, 1, 5] },

  { a: '1', b: 2, c: false, d: [1, 3, 5, 7] }
) //true

checkEqual(
  { a: '1', b: 2, c: false, d: [1, 3, 5, 7], e: { x: 'x', y: 'y', z: 'z' } },

  { a: '1', b: 2, c: false, d: [1, 3, 5, 7], e: { x: 'x', y: 'y' } }
) //false

checkEqual({ a: '2', b: 2, c: false }, { a: '1', b: 2, c: false }) //false

checkEqual({ a: '1', b: 2, c: true }, { a: '1', b: 2, c: false }) //false

checkEqual({ a: '1', b: 0, c: false }, { a: '1', b: 2, c: false }) //false

If you have recently updated, please read the changelog for details of what has changed.