Node.js forEach() function

forEach() is an array function from Node.js 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 array element after iteration.

The program below demonstrates the working of the function:

Program 1:

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

Output:

cat
dog
fish

Program 2:

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

Output:

1
2
3
8
7