JavaScript is widely used on various websites, and Mozilla Firefox 18 is one of them. Mozilla team claims that a new JavaScript technology in the latest release of Firefox will be helping load the site faster 26 percent.
The new technology will be a part of Firefox 18 is IonMonkey which is a compiler just-in-time (JIT). Previous Firefox has been using other compilers such as TraceMonkey and JagerMonkey but for this new JIT compiler, Mozilla prefers to take a new approach.
IonMonkey first converts JavaScript to intermediate representation (IR), runs various algorithms to optimize IR IRs and ultimately translate into machine code. Basically IonMonkey see a big picture of the code and run a global optimization.
As a result, a page with JavaScript can be loaded quickly in Firefox 18, when compared to Firefox 17. But we have to be patient because they have to wait until 18 November to be able to get the beta version of Firefox 18.
origin source by ubergizmo
