Understanding async context and the future of server-side JavaScript

Understanding async context and the future of server-side JavaScript

This article explores the concept of async context and how it improves asynchronous programming in JavaScript. It discusses the challenges of managing asynchronous code and introduces the Async Context API, a proposal that aims to address these challenges. The Async Context API allows JavaScript to capture and use implicit call site information across transitions through the event loop. It provides a mechanism for creating, manipulating, and retrieving context variables in asynchronous code blocks. The article explains how the Async Context API works, including the use of the AsyncContext class to create and access context variables. The Async Context API simplifies the management of async code and allows developers to write async code that resembles synchronous code, even when implicit information is required.