How to exclude Javascript multiple loading?

Question

JavaScript

In the Google Chrome extension, an event is set that monitors the loading of a specific page of the site exemple.com:

$(document).ready(function(){
  //Выполняемое действие;
});

If the page is opened multiple times, then the javascript code will be executed many times. Is it possible to fix the event in such a way as to prevent Javascript from being loaded multiple times? Like: Opened the browser, loaded the page, the event worked and waits for the next browser opening and page loading.

Answer 1

You need sessionStorage.
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