how to push function into array in javascript code example

Example 1: push array javascript

let array = ["A", "B"];
let variable = "what you want to add";

//Add the variable to the end of the array
array.push(variable);

//===========================
console.log(array);
//output =>
//["A", "B", "what you want to add"]

Example 2: how to push items in array in javascript

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