js array append element 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: javascript append array to end of array

const new_array = old_array.concat([value1[, value2[, ...[, valueN]]]])

Example 4: javascript append to array

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

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