javascript - Check parent div element contains class -

i have class inside div element. div element present inside div element. how check whether parent div element contains class. or how traverse parent div element inner div element , check class?

use > css selector check if element 1 level inside element.

var innerdiv = document.queryselector("#parent_div_id > div > .innerclass");  if(innerdiv) { // yes, exists! 

queryselector docs.