how to push an object to an array in javascript code example

Example 1: js add item to array

var fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.push("Kiwi");

Example 2: push object into array javascript

var nietos = [];
var obj = {};
obj["01"] = nieto.label;
obj["02"] = nieto.value;
nietos.push(obj);

Example 3: js add array items to array

var arrayA = [1, 2];
var arrayB = [3, 4];
var newArray = arrayA.concat(arrayB);