how to insert into an array javascript 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: add elements to an array with splice

var fruits = ["Banana", "Orange", "Apple", "Mango"];
document.getElementById("demo").innerHTML = fruits;

function myFunction() {
  fruits.splice(2, 0, "Lemon", "Kiwi");
  document.getElementById("demo").innerHTML = fruits;
}

Example 3: javascript Inserting values in between an array

myArray.splice(index, itemsToDelete, item1ToAdd, item2ToAdd, ...)

Example 4: how to insert a value into an array javascript

var list = ["foo", "bar"];


list.push("baz");


["foo", "bar", "baz"] // result