JavaScript Event Loop

The event loop in JS is a single main thread which is responsible for the execution of the code.

Major components of JS event loop

• Main Thread (Event Loop) : responsible for execution of the flow
• Call Stack : the stack which hold the lastest part of the code which needs to be executed
• Callback Queues : holds the response generated from Web APIs once the task/function is completed
• Web APIs : runs the additional functionality required and handles the asynchronous aspect of the execution