Performance Evolution
| "..previously behind-the-scenes programming technology called JavaScript is getting new visibility .. " |
| —-CNET |
A typical major browser has a graphical engine and an independent JavaScript engine, which allows for easier testing, reimplementation or use in other projects. For example Carakan is used with Presto; Nitro with WebKit; SpiderMonkey with Gecko; KJS with KHTML; Rhino by default has no layout engine. Other combinations are possible, for example, V8 with WebKit in Google Chrome. The JavaScript engine gives developers access to functionality (networking, DOM handling, external events, HTML5 video, canvas and data storage) needed to control the web browser.
SunSpider is a JavaScript benchmark utility for measuring the performance of JavaScript engines in more than a dozen tests, each concentrating on different part of JavaScript language. SunSpider does not use for benchmarking any features beyond those needed to test pure computations (no HTML, no CSS, no networking).
Read more about this topic: JavaScript Engine
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