map js mdn code example

Example 1: javascript map

array.map((item) => {
  return item * 2
} // an example that will map through a a list of items and return a new array with the item multiplied by 2

Example 2: how to use the map method in javascript

const numbers = [1, 2, 3, 4, 5]; 

const bigNumbers = numbers.map(number => {
  return number * 10;
});

Example 3: new map js

let utilisateurs = new Map()

utilisateurs.set('Mark Zuckerberg' ,{
    email: 'mark@facebook.com',
    poste: 'PDG',
})

utilisateurs.set ('bill Gates',{
    email: 'billgates@notes.com' ,
    poste : 'sauver le monde' ,

})
    
console.log(utilisateurs);

Example 4: map in js

//map() methods returns a new array
const data = {name: "laptop", brands: ["dell", "acer", "asus"]}
let inside_data = data.brands.map((i) => {
	console.log(i); //dell acer asus
});

Example 5: javascript map

const numbers = [0,1,2,3];

console.log(numbers.map((number) => {
  return number;
}));

Example 6: javascript map

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