1array.push(element)

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"]

1let items = [1, 2, 3]
2items.push(4); // items = [1, 2, 3, 4]

1var array = [];
2var element = "anything you want in the array";
3array.push(element); // array = [ "anything you want in the array" ]

1array.push(element_to_push);

1Push.create("Hello world!", {
2    body: "How's it hangin'?",
3    icon: '/icon.png',
4    timeout: 4000,
5    onClick: function () {
6        window.focus();
7        this.close();
8    }
9});
10