2 arrays in one js code example

Example 1: combine two arrays javascript

let arr1 = [0, 1, 2];
let arr2 = [3, 5, 7];
let primes = arr1.concat(arr2);

// > [0, 1, 2, 3, 5, 7]

Example 2: merge array in js

//for ES5
var array1 = ["Rahul", "Sachin"];
var array2 = ["Sehwag", "Kohli"];

var output = array1.concat(array2);
console.log(output);

//for ES6, we use spread operators to concat arrays

var array1 = ["Dravid", "Tendulkar"];
var array2 = ["Virendra", "Virat"];

var output = [...array1, ...array2];
console.log(output);

Example 3: from array create two arrayjavascript

//If you find something better, please, let me know :(
let arr = [[1,2],[3,4],[5,6]]
let [arr1, arr2] = [[], []]
arr.map((e) => { arr1.push(e[0]); arr2.push(e[1]) })
console.log(arr1,arr2) // [[1,3,5],[2,4,6]]