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]javascript map
// make new array from edited items of another array
var newArray = unchangedArray.map(function(item, index){
return item; // do something to returned item
});
// same in ES6 style (IE not supported)
var newArray = unchangedArray.map((item, index) => item);javascript map
The map() method creates a new array with the results of calling a provided function on every element in the calling array.Copyright © 2021 Codeinu
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