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JavaScript's Event Loop & Callback Queue (A Graphical Guide)
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JavaScript's Event Loop & Callback Queue (A Graphical Guide)

Visualizing How JavaScript's Internals Work!

Dr. Ashish Bamania's avatar
Dr. Ashish Bamania
Oct 22, 2023
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JavaScript's Event Loop & Callback Queue (A Graphical Guide)
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flatlay photography of desktop
Photo by Oskar Yildiz on Unsplash

When JavaScript is run on a browser, the following components come into play:

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  • The JavaScript Engine with its Call stack and its Memory heap

  • The Event Loop

  • The Callback Queue

  • The Web API

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