Example 1: concatenate javascript array
const fruits = ['apple', 'orange', 'banana'];
const joinedFruits = fruits.join();
console.log(joinedFruits); // apple,orange,banana
Example 2: 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 3: 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 4: join 2 array in javascript
const array1 = ["Vijendra","Singh"];
const array2 = ["Singh", "Shakya"];
const array3 = [...array1, ...array2];
Example 5: javascript concat two arrays
//ES6
const array3 = [...array1, ...array2];
Example 6: concatenate multiple arrays javascript
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"]