For web workers as a means for web content to run scripts in background threads, why does one encourage writing a non-in-line worker in a separate JavaScript file; what is the window context, and what is the worker global context? Prominent Advantages of External Workers in JavaScript

JavaScript’s Prominent Features: External Workers are a Major Advantage 

Because of its unique advantages, web workers are often advised to write a non-inline worker in separate JavaScript files. This allows web content to run scripts on background threads. Window context is a DOM representation that represents the browser window object. It contains the contents, configuration options and frames. The worker global context, which is created by the shared worker, allows the main JavaScript file access to the global environment variables and other parameters (Campbell 2015).   Developers can also benefit from writing separate JavaScript files as external workers. This allows them to have better source control and cross-browser compatibility. It is easier to debug and modularize, as well as minimize security risks (Rossi & Fernandes 2020). This promotes coding best practices, which ensure that the code is portable and scaleable.   Separating the worker program from the main program by using an external JavaScript script file with a different execution context has significant advantages in terms debugging and modularity as well as security and scalability.  References  Campbell, Scott 2015, “What is a worker context?”, Stack Overflow, viewed 1 March 2021,   Hughes, Steven, and Chris Kam 2021, “Web Workers in JavaScript – Explained”, Scotch.io, viewed 1 March 2021,   Rossi, Thomas, and John Fernandes 2020, “JavaScript Web Workers: A Comprehensive Guide”, LogRocket, viewed 1 March 2021, Cont…