How would I see the code behind these functions? You would need to find the source code for the relevant project (Firefox, Chromium, V8, SpiderMonkey, etc.), provided the project is open-source. Would I need to understand the language that an engine such as V8 is written in and read through that, or is there a … Read more
PhantomJS – http://phantomjs.org/ PhantomJS is a headless WebKit with JavaScript API. It has fast and native support for various web standards: DOM handling, CSS selector, JSON, Canvas, and SVG. You can couple it with something like php-PhantomjsRunner (now deprecated) if you want or bake your own. When setup and ready to start testing with PhantomJS, … Read more
These are the details that I’ve been able to dig up. It’s worth noting first that although JavaScript is usually considered to be interpreted and run on a VM, this isn’t really the case with the modern interpreters, which tend to compile the source directly into machine code (with the exception of IE). Chrome : … Read more