pushing element in array in javascript

some_array = ["John", "Sally"];
some_array.push("Mike");

console.log(some_array); //output will be =>
["John", "Sally", "Mike"]

var array = [];
var element = "anything you want in the array";
array.push(element); // array = [ "anything you want in the array" ]

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

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

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