how the map function works javascript
const array = [2, 5, 9];
let squares = array.map((num) => num * num);
console.log(array); // [2, 5, 9]
console.log(squares); // [4, 25, 81]
how the map function works javascript
const array = [2, 5, 9];
let squares = array.map((num) => num * num);
console.log(array); // [2, 5, 9]
console.log(squares); // [4, 25, 81]
functions in map javascript
const map = new Map();
function foo() {
return "Hello World!";
}
map.set("foo", foo);
console.log(map.get("foo")()); // Output: "Hello World!
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