nodejs is in map code example

Example 1: javascript map array

const array1 = [1, 4, 9, 16];

// pass a function to map
const map1 = array1.map(x => x * 2);

console.log(map1);
// expected output: Array [2, 8, 18, 32]

Example 2: javascript map

The map() method creates a new array with the results of calling a provided function on every element in the calling array.