Alfred D'Souza

filter() it all out: JavaScript provides us with a very helpful method, filter. We can use it to filter out values from an array.

Just like the map method, JavaScript provides us with another very helpful method, filter. And as the name suggests we can use it to filter out values from an array.

Let’s start by looking at how Mozilla Developer Network describes the filter method:

The filter() method creates a new array with all elements that pass the test implemented by the provided function.

Of course we will need an array,…

map() – JavaScript magic

JavaScript provides us with the very helpful map method to work with arrays. It can be used in scenarios where you want to perform an action on each of the elements of an array.

Let’s start by looking at the definition of the map method as described on Mozilla Developer Network:

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

Le…