For loop

Most of the time we will have to iterate through an array or an object, so I will use an array for examples.
Anatomy of a for loop:

Let's see a pratical example.
I want to add this "✨" for each animal in my array.

let animals = [
  '🐶',
  '🐼',
  '🐸',
  '🐥',
  '🦄',
  '🦋'
]

For loop makes my task easier like this:

Result:

Now let's try to create a new array with our animals plus a star for each one.

for loop how it works:

ES6 introduced for...of loop, the new loop sintax:

easy to read and maintain.