add in javascript array code example

Example 1: javascript append to array

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

Example 2: pushing to an array

array = ["hello"]
array.push("world");

console.log(array);
//output =>
["hello", "world"]

Example 3: javascript array add

// example:
let yourArray = [1, 2, 3];
yourArray.push(4); // yourArray = [1, 2, 3, 4]

// syntax:
// .push();

Example 4: pushing element in array in javascript

array = ["hello"]
array.push("world");

Example 5: js add function to array

//create an new function that can be used by any array
Array.prototype.second = function() {
  return this[1];
};

var myArray = ["item1","item2","item3"];
console.log(myArray.second());//returns 'item2'

Example 6: javascript append to array

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

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