D3.js node.count() Function

Node forEach() function

Last Updated : 12 Jul, 2025

forEach() is an array function Node that is used to iterate over items in a given array.

Syntax:

array_name.forEach(function)

Parameter:

This function takes a function (which is to be executed) as a parameter.

Return type:

The function returns an array element after iteration. The program below demonstrates the working of the function:

Example 1: Below is the code example of forEach() function

JavaScript

const arr = ['cat', 'dog', 'fish'];
arr.forEach((element) => {
    console.log(element);
});

Output:

cat
dog
fish

Example 2: Below is the code example of forEach() function

JavaScript

const arr = [1, 2, 3, 8, 7];
arr.forEach((element) => {
    console.log(element);
});

Output:

D3.js node.count() Function

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