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Fernando Jimenez
Fernando Jimenez
Courses Plus Student 8,203 Points

Why is this simple variable wrong?

const stickyMenuPhone = document.querySelector(".hmenu_social_holder.hmenu_hide_for_mobile"); //Select  class

alert('Hello World');

That class belongs to this index page https://advocatesidaho.staging.wpengine.com/

all I am trying to do is to just assign that value to stickyMenuPhone but it returns null instead.

1 Answer

Tim Knight
Tim Knight
28,888 Points


I'm going to guess that your JavaScript is executing before your DOM is fully loaded here so the item with the class is coming back as null. To prevent that I'd just put your code inside of an iife like this:

(function () {
  const stickyMenuPhone = document.querySelector('div.hmenu_social_holder .hmenu_hide_for_mobile');

That way it'll run once everything is loaded.