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Introduction to Asynchronous Language Features

Introduction to Asynchronous Language Features

An overview of JavaScript's single-threaded and asynchronous nature and how it simplifies runtime.

JavaScript’s single-threaded and asynchronous nature

The JavaScript runtime, whether it is running in the browser or whether it is running on a server through Node, is single-threaded. This means that one, and only one, piece of code will be running at a particular time. This code runs in what is known as the main thread.

JavaScript has also been built around an asynchronous ...