javascript add array items to array code example

Example 1: javascript insert item into array

var colors=["red","blue"];
var index=1;

//insert "white" at index 1
colors.splice(index, 0, "white");   //colors =  ["red", "white", "blue"]

Example 2: javascript append array to array

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

Example 3: javascript add element to array

const langages = ['Javascript', 'Ruby', 'Python'];
langages.push('Go'); // => ['Javascript', 'Ruby', 'Python', 'Go']

const dart = 'Dart';
langages = [...langages, dart]; // => ['Javascript', 'Ruby', 'Python', 'Go', 'Dart']

Example 4: how to append an element to an array in javascript

//Use push() method
//Syntax: 
array_name.push(element);
//Example: 
let fruits = ["Mango", "Apple"];
//We want to append "Orange" to the array so we will use push() method
fruits.push("Orange"); 
//There we go, we have successfully appended "Orange" to fruits array!