queryselectorall by tagname code example

Example 1: js queryselector find without attribute

var test = document.querySelectorAll('input[value][type="checkbox"]:not([value=""])');

Example 2: dom queryselector

// TO select all the h1 from Html
document.querySelectorAll("h1")

//To select h1 from a particular class or id
document.querySelector(".className/#id h1")