compare two array value in javascript

const compareArrays = (a, b) =>
  a.length === b.length &&
  a.every((element, index) => element === b[index]);

let array1 = [11, 22, 33];
let array2 = [21, 22, 23];
let array3 = [11, 22, 33];

console.log(compareArrays(array1, array2)); //false
console.log(compareArrays(array1, array3)); //true

Popularity 9/10 Helpfulness 5/10 Language javascript

Source: www.freecodecamp.org

Tags: arrays ar

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Contributed on Jan 09 2023

Nwaegidi Wisdom

0 Answers Avg Quality 2/10

compare two array in JavaScript

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const compareArrays = (a, b) => {
  return JSON.stringify(a) === JSON.stringify(b);
};

let array1 = [11, 22, 33];
let array2 = [21, 22, 23];
let array3 = [11, 22, 33];

console.log(compareArrays(array1, array2)); //false
console.log(compareArrays(array1, array3)); //true

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Source: www.freecodecamp.org

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Contributed on Sep 24 2023

mary Richelle

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javascript Compare two arrays regardless of order

Comment

const isEqual = (a, b) => JSON.stringify(a) === JSON.stringify(b);

// Examples
isEqual([1, 2, 3], [1, 2, 3]);      // true
isEqual([1, 2, 3], [1, '2', 3]);    // false

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Source: Grepper

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Contributed on Jul 02 2020

Batman

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js compare elements of two arrays

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-1

var array1 = ["cat", "sum","fun", "run", "hut"];
var array2 = ["bat", "cat","dog","sun", "hut", "gut"];

console.log(array1.diff(array2));

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Source: stackoverflow.com

Tags: arrays ar

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Contributed on Apr 14 2022

Lively Lynx

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how to compare two arrays javascript

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function arraysAreIdentical(arr1, arr2){
    if (arr1.length !== arr2.length) return false;
    for (var i = 0, len = arr1.length; i < len; i++){
        if (arr1[i] !== arr2[i]){
            return false;
        }
    }
    return true; 
}

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Source: stackoverflow.com

Tags: arrays ar

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Contributed on Sep 07 2020

Spotless Shrew

0 Answers Avg Quality 2/10

comparing two arrays in javascript

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const arr1 = [1, 2, 3];
const arr2 = [1, 3, 3];

if (arr1.length !== arr2.length) return console.log("false");
for (let i = 0; i < arr1.length; i++) {
    for (let j = 0; j < arr2.length; j++) {
        if (arr1[i] === arr2[j]) {
            console.log("yes match", arr1[i], arr2[j]);
            continue;
        }
        console.log("no match", arr1[i], arr2[j]);
    }
}

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Source: Grepper

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Contributed on Mar 02 2021

abhi

0 Answers Avg Quality 2/10

compare two array in javascript

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let arr1 = [1, 4, 7, 4, 2, 3];
let arr2 = [1, 2, 3, 4, 7, 18];

const is_same = arr1.length == arr2.length &&
  (arr1.every((currElem)=>{
    if(arr2.indexOf(currElem)> -1){
      return (currElem == arr2[arr2.indexOf(currElem)]);
    }return false
  })
)
console.log(is_same)

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Source: www.30secondsofcode.org

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Contributed on Nov 19 2021

Gentle Gerenuk

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compare between two arrays javascript

Comment

const equals = (a, b) => JSON.stringify(a) === JSON.stringify(b);
let arr1 = ['1','2'];
let arr2 = ['1','2'];
equals(arr1,arr2)//this return false , if not equal then its return false

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Source: Grepper

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Contributed on Apr 30 2021

badboy

0 Answers Avg Quality 2/10

compare two arrays javascript

Comment

let equal = a.every(b.includes)

Popularity 8/10 Helpfulness 2/10 Language javascript

Source: Grepper

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Contributed on Aug 30 2023

Jolly Jay

0 Answers Avg Quality 2/10

How to compare arrays in JavaScript?

Comment

// Warn if overriding existing method
if(Array.prototype.equals)
    console.warn("Overriding existing Array.prototype.equals. Possible causes: New API defines the method, there's a framework conflict or you've got double inclusions in your code.");
// attach the .equals method to Array's prototype to call it on any array
Array.prototype.equals = function (array) {
    // if the other array is a falsy value, return
    if (!array)
        return false;

    // compare lengths - can save a lot of time 
    if (this.length != array.length)
        return false;

    for (var i = 0, l=this.length; i < l; i++) {
        // Check if we have nested arrays
        if (this[i] instanceof Array && array[i] instanceof Array) {
            // recurse into the nested arrays
            if (!this[i].equals(array[i]))
                return false;       
        }           
        else if (this[i] != array[i]) { 
            // Warning - two different object instances will never be equal: {x:20} != {x:20}
            return false;   
        }           
    }       
    return true;
}
// Hide method from for-in loops
Object.defineProperty(Array.prototype, "equals", {enumerable: false});

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Source: worcraft-algeria-dz.com

Tags: arrays ar

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Contributed on Aug 01 2022

thecodeteacher

0 Answers Avg Quality 2/10

compare two array value in javascript

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