JavaScript : Javascript anonymous function call

JavaScript : Javascript anonymous function call
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On Google, Search for "hows tech developer connect"

I have a hidden feature that I promised to tell you about.
This is a YouTube's feature which works on Desktop.
First, Make sure the video is currently in playing mode.
Then, type the letters 'awesome' on your keyboard as the next step.
It will change your youtube progress bar into a flashing rainbow.

An introduction to myself in a few words,
Hi, my name is Delphi, nice to meet you.
Let me help you with your questions.
JavaScript : Javascript anonymous function call
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Javascript : call anonymous function JavaScript