list.map 2 items at a time javascriðt code example
Example 1: how to use the map method in javascript
const numbers = [1, 2, 3, 4, 5];
const bigNumbers = numbers.map(number => {
return number * 10;
});
Example 2: use map to loop through an array
let squares = [1,2,3,4].map(function (val) {
return val * val;
});
// squares will be equal to [1, 4, 9, 16]