The forEach() method is used to call a function that iterates elements in an array or classList. In other words it adds a function for each element in an array or with the selected class.

let students = ['Cady', 'Cam', 'Lens'];

// using forEach
students.forEach(myFunction);

function myFunction(item) {

 console.log('Hello ' + item);

}

//The output is all of the arrays items seperately because it runs FOR EACH of the elements and not all at once.

// with arrow function and callback

const students = ['Cady', 'Cam', 'Lens'];

students.forEach(element => {
  console.log(element);
});