Compiling an application is often referred to as the “build” step. The application is compiled using a compiler.
#Angular ui browser support code
What is the difference between the two? Compiled LanguagesĪpplications written with compiled languages are compiled to produce machine code that is executed directly by the operating system. Programming languages can be categorized into compiled or interpreted languages. Programming languages are high-level human-readable languages that need to be converted to low-level binary code and machine code that computers can execute.
![angular-ui browser support angular-ui browser support](https://i.stack.imgur.com/DkT3d.png)
Therefore, in this article we will talk about processes, threads, the responsibilities of the main thread of the renderer process, and its interaction with other the other browser processes and threads.īefore we can talk about processes and threads, we need to look at the difference between compiled and interpreted languages. However, a basic understanding of threads and processes helps clear some of the mysteries of asynchronous programming in JavaScript. When programming with JavaScript, we mostly don’t have to think about threads. Additionally, we can use the requestIdleCallback() API to queue time-consuming, low-priority tasks to run on the main thread of the renderer process when the browser would otherwise be idle. Using the Web Workers API we can run CPU-intensive tasks on a background thread of the renderer process.
![angular-ui browser support angular-ui browser support](https://uploads.toptal.io/blog/image/125413/toptal-blog-image-1518523133236-d2bc894552c77f954f1e5ce48da6604d.png)
For example, fetch() runs on a network thread in the browser process. When we call Web APIs such as fetch(url).then(cb) or setTimeout(cb, delay), they do not run on the main thread of the renderer process.
![angular-ui browser support angular-ui browser support](https://i.stack.imgur.com/dYOYe.png)
Modern browsers have a multi-process architecture with separate processes that take care of different parts of the browser.īeing aware of processes and threads also helped me see that Web APIs introduce asynchronous tasks in our applications. It took me a while to realize that the main thread we’re talking about belongs to a process in the browser that is specifically responsible for rendering web page and running anything that affects rendering (JavaScript and user input events). Only one thing can happen at a time, on a single main thread and everything else is blocked until an operation completes. We often hear “main thread” mentioned when learning about optimizing JavaScript code for performance. What does this mean for developing in JavaScript, which is single-threaded? Instead of doing everything in a single process on a single thread, modern browsers have a multi-process architecture.