what is the use of forEach in javascript code example

Example 1: javascript foreach

const avengers = ['thor', 'captain america', 'hulk'];
avengers.forEach((item, index)=>{
	console.log(index, item)
})

Example 2: foreach javascript

var items = ["item1", "item2", "item3"]
var copie = [];

items.forEach(function(item){
  copie.push(item);
});

Example 3: javascript foreach

let numbers = ['one', 'two', 'three', 'four'];

numbers.forEach((num) => {
  console.log(num);
});  // one   //two //three // four

Example 4: foreach javascript

let dogs = ['Husky','Black Lab','Australian Shepard','Golden Retriever'];

dogs.forEach(function(dog) {
	console.log(dog); 
});

Example 5: forEach javascript

const fruits = ['mango', 'papaya', 'pineapple', 'apple'];

fruits.forEach(function(fruit){
  console.log('I want to eat a ' + fruit)
});