concat 3 array js code example

Example 1: concatenate javascript array

const fruits = ['apple', 'orange', 'banana'];
const joinedFruits = fruits.join();

console.log(joinedFruits); // apple,orange,banana

Example 2: javascript concat two arrays

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

Example 3: array concat in javascript

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

const newArray = letters.concat(numbers);
// newArrat is ['a', 'b', 'c', 1, 2, 3]