JavaScript Array forEach() method

Last Updated : 17 Mar 2025

The JavaScript array forEach() method is used to invoke the specified function once for each array element.

Syntax

The forEach() method is represented by the following syntax:

Parameter

callback - It represents the function that test the condition.

currentvalue - The current element of array.

index - It is optional. The index of current element.

arr - It is optional. The array on which forEach() operated.

thisArg - It is optional. The value to use as this while executing callback.

Return

undefined

JavaScript Array forEach() method example

Let's see some examples of forEach() method.

Example 1

Here, we will print the array elements using forEach().

Output:

Example 2

Here, we will print the Fibonacci series with the help of forEach() method.

Output: