- click the green flag without loading the example extension - it says extension not found - now click look inside - copy the example extension code - open your browser's development console - paste the code and press enter - click the green flag again - now it says extension found - if you understand javascript, look at the example extension to figure out what it does - if not, no problem, just look at the comment's how it works part
/!\ IMPORTANT ================================================ The example extension contains no virus nor any other harmful thing as you can see and it doesn't loads automatically, allowing you to chose whether to use it or not ================================================ It checks if an unofficial extension is loaded This can be useful if you make something that's not possible without an unofficial extension and want to check if the extension is loaded. You may want to check it, because unofficial extensions need to be loaded manually every time you open a project that uses one. You need to remove all undefined blocks before sharing your project if you make a such one. You can add them back after sharing the project.
