How to retrieve data from html page using html class?

Question

<div class="MyName">
  majedur
</div>

I want majedur through using MyName

Answer 1

document.getElementsByClassName("MyName") will return you collection of element that has class "MyName", you can retrieve required by it's index

var elements= document.getElementsByClassName("MyName");

if(elements.length > 0){
     var value = elements[0].innerHTML;
}

Answer 2

try this

var divText = document.getElementsByClassName('MyName')[0].innerHTML;

alert(divText);//for alert the inner text  of the div

console.log(divText);//write in console the inner text  of the div