What is the JavaScript Event Loop?

JavaScript is a single-threaded language, meaning it can execute only one task at a time. But modern applications need to handle multiple operations like API calls, timers, and user interactions simultaneously. This is made possible by the event loop, a mechanism that allows JavaScript to perform non-blocking operations efficiently.

The event loop continuously monitors the execution of code and ensures that asynchronous tasks are handled without freezing the application. It acts as a coordinator between different components like the call stack and queues.

Understanding the Call Stack

The call stack is where JavaScript keeps track of function execution. Whenever a function is called, it is pushed onto the stack.…