what is a map js 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: map javascript

miMapa.forEach(function(valor, clave) {
  console.log(clave + ' = ' + valor);
});
// Mostrará 2 logs; el primero con "0 = cero" y el segundo con "1 = uno"