map to array javascript
let map = new Map().set('a', 1).set('b', 2),
array = Array.from(map, ([name, value]) => ({ name, value }));
console.log(array);map to array javascript
let map = new Map().set('a', 1).set('b', 2),
array = Array.from(map, ([name, value]) => ({ name, value }));
console.log(array);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 to use the map method in javascript
const numbers = [1, 2, 3, 4, 5];
const bigNumbers = numbers.map(number => {
return number * 10;
});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!map a keys from an array in a separate arraylist javascript
const myUsers = [
{ name: 'shark', likes: 'ocean' },
{ name: 'turtle', likes: 'pond' },
{ name: 'otter', likes: 'fish biscuits' }
]
const usersByLikes = myUsers.map(item => {
const container = {};
container[item.name] = item.likes;
container.age = item.name.length * 10;
return container;
})
console.log(usersByLikes);Copyright © 2021 Codeinu
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