https://github.com/writetome51/is-match

A substitute for using === operator. Useful when arrays don't have to be identical via === to be deemed a match. They must only have identical content.
https://github.com/writetome51/is-match

array comparison identical javascript match matching

Last synced: 11 days ago
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A substitute for using === operator. Useful when arrays don't have to be identical via === to be deemed a match. They must only have identical content.

• Host: GitHub
• URL: https://github.com/writetome51/is-match
• Owner: writetome51
• License: mit
• Created: 2021-03-25T06:59:30.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2021-03-25T20:58:51.000Z (over 3 years ago)
• Last Synced: 2024-08-08T15:45:00.366Z (3 months ago)
• Topics: array, comparison, identical, javascript, match, matching
• Language: JavaScript
• Homepage:
• Size: 21.5 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

README

        
# isMatch(
     item1: any,
     item2: any
): boolean

 

Works for any data type, but really intended for array comparison.  

The algorithm:

```

function isMatch(item1, item2) {

    if (item1 === item2) return true;

    if (isArray(item1) && isArray(item2) && (item1.length === item2.length)) {

        for (let i = 0, length = item1.length; i < length; ++i) {

            if (not(isMatch( item1[i], item2[i] ))) return false;

        }

        return true;

    }

    else return false;

}

```

## Examples

```js

isMatch([], []); // true

isMatch(['a', 'b'],  ['a', 'b']); // true

isMatch(['a', 'b'],  ['a', 'b', 'c']); // false

// Elements must be in matching order to match:

isMatch(['a', 'b', 'c'],  ['c', 'b', 'a']); // false

isMatch([1, 2, [3]], [1, 2, [3]]); // true

let obj = {prop: 1};

isMatch([obj], [{prop:1}]); // false

let obj2 = obj;

isMatch([obj], [obj2]); // true

// Behaves the same as === operator for primitive types and non-array objects:

isMatch('', ''); // true

isMatch('0', '0'); // true

isMatch('0', 0); // false

isMatch('00', '01'); // false

isMatch(Infinity, Infinity); // true

isMatch(undefined, undefined); // true

let obj = {prop: 1};

isMatch(obj, {prop:1}); // false

let obj2 = obj;

isMatch(obj, obj2); // true

```

## Installation

`npm i  @writetome51/is-match`

## Loading

```js

import {isMatch} from '@writetome51/is-match'; 

```