how to loop through elemets inside class on javascript code example

Example 1: javascript loop through class elements

var els = document.getElementsByClassName("myClass");
for(var i = 0; i < els.length; i++)
{
  console.log(els[i]);
}

Example 2: javascript loop through object example

var person={
 	first_name:"johnny",
  	last_name: "johnson",
	phone:"703-3424-1111"
};
for (var property in person) {
  	console.log(property,":",person[property]);
}