javascript append to array
var colors= ["red","blue"];
colors.push("yellow"); //["red","blue","yellow"]var colors=["red","white"];
colors.push("blue");//append 'blue' to colorsconst array1 = ['a', 'b', 'c'];
const array2 = ['d', 'e', 'f'];
const array3 = array1.concat(array2);var colors= ["red","blue"];
colors.push("yellow"); array.push(element)arr = [1, 2, 3, 4]
arr.push(5) // adds element to end
arr.unshift(0) // adds element to beginning
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