how to append to an array javascript code example

Example 1: javascript append to array

var colors=["red","white"];
colors.push("blue");//append 'blue' to colors

Example 2: javascript append element to array

var colors= ["red","blue"];
	colors.push("yellow");

Example 3: javscript append item from array

let foo = ['oop','plop','copo'];
	foo.push("plop");

Example 4: add item to array javascript

const arr1 = [1,2,3]
const newValue = 4
const newData = [...arr1, obj] // [1,2,3,4]

Example 5: javascript append to array

arr = [1, 2, 3, 4]
arr.push(5) // adds element to end

arr.unshift(0) // adds element to beginning