If you are working in the javascript for a while then you have probably come across the most widely used method of javascript map() and forEach(). Apart from this, there are so many methods available in the javascript for array and string which is widely used by the programmers as per the requirement. In this article, we are going to discuss the differences and usages of the javascript map() and forEach() method.

map() and forEach() definition

• map(): creates a new array with the results of calling a provided function on every element in this array.
• forEach(): executes a provided function once for each array element.

Now let’s understand the meaning of the above two statements. map() method calls a provided function on each element of the provided array and returns a new array of the same size or new size while forEach() method doesn’t return anything, its simple calls the provided function on each element of the array.

Ohh!!! It’s too hard to understand without the examples, so let’s understand both methods with an example.

#javascript #nodejs