1var colors= ["red","blue"];
2	colors.push("yellow"); 

1array.push(element)

1array = ["hello"]
2array.push("world");

1let array = ["A", "B"];
2let variable = "what you want to add";
3
4//Add the variable to the end of the array
5array.push(variable);
6
7//===========================
8console.log(array);
9//output =>
10//["A", "B", "what you want to add"]

1var fruits = ["Banana", "Orange", "Apple", "Mango"];
2fruits.push("Kiwi");

1arr = [1, 2, 3, 4]
2arr.push(5) // adds element to end
3
4arr.unshift(0) // adds element to beginning