Array.prototype.map() is a method that iterates over an array and applies ... We'll also use this as a chance to demonstrate some of the power of functions in JavaScript. We'll write the code four ...

Quando devo usar o método map()? Quando você precisa obeter um novo array, com a mesma quantidade de itens do array original. exemplo: Array Original [ 1, 2, 3 ] e quero um novo Array que me retorne ...

Learn how to use JavaScript’s map() method to transform arrays like a pro—in just 100 seconds. We’ll show you how it works, where it shines, and give you examples that make it click ...