how to for loop in html code example

Example 1: javascript loop

let array = ['Item 1', 'Item 2', 'Item 3'];

array.forEach(item => {
	console.log(item); // Logs each 'Item #'
});

Example 2: loop javascript

//this is javascript
var speed = 100;
setInterval(function() {
//DO SOMETHING THAT REPEATS
},speed);