Take TraceMonkey, a newly announced Mozilla-based project that speeds up JavaScript execution dramatically ... it's working on – it's got enough context by then. Loops are miniature programs ...

However, in addition to a runtime, JavaScript needs to be invoked within an execution context. At a simplicity level you can think of an execution context as being the sandbox that the JavaScript code ...

uBlock Origin, one of the most popular ad blockers today, has released an update over the weekend that adds an option to block JavaScript (JS) execution on a page altogether. What this means is ...