javascript concat two arrays

MPW

Code: Javascript

2021-06-10 08:22:32

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

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

Ahmad Sharif

Code: Javascript

2021-02-05 16:48:02

//ES6
const array3 = [...array1, ...array2];

Vincent Joyosa

Code: Javascript

2021-02-05 16:49:28

[1,2,3].concat([4,5,6])
// [1,2,3,4,5,6]

Bob L

Code: Javascript

2021-02-05 16:50:35

const letters = ['a', 'b', 'c'];
const numbers = [1, 2, 3];

letters.concat(numbers);
// result in ['a', 'b', 'c', 1, 2, 3]

lux

Code: Javascript

2021-07-04 05:20:46

const array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const array3 = [...array1, ...array2];

console.log(array3);
// expected output: Array ["a", "b", "c", "d", "e", "f"]

wonderich

Code: Javascript

2021-05-20 11:51:13

// using push and apply to return the same array
const arr1 = ['a', 'b'];
const arr2 = ['c', 'd'];
arr1.push.apply(arr1, arr2);
console.log(arr1) // ['a', 'b', 'c', 'd']

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