Sometimes you want to click them all. Find all elements using css selector and click them every 1 sec. I used to download all code samples from chrome extensions documentation.

clicker.js

var selector = 'h2 a';
var list = document.querySelectorAll(selector);
console.log('#elements to click', list.length);
list.forEach(function(el, i){
  new Promise((resolve) => setTimeout(resolve, 1000*i)).then(() => {
    console.log(i, el);
    el.click();
  });
});