spidermonkey

可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效，请关闭广告屏蔽插件后再试): 问题: I noticed ubuntu 10.04 removed the spidermonkey package. Rhino looks like it's still there though. What are the differences between rhino and spidermonkey (besides what language they're written in). And why did they remove spidermonkey? 回答1: I'm afraid the difference is the language they are written in, or what it means. People use C/C++ to write all manner of things (like Firefox) whereas Java is most prevalent in Application Servers. From http://en.wikipedia.org/wiki/Rhino_%28JavaScript_engine%29 : Rhino converts JavaScript scripts into

For the first time, I began learning Javascript, however on the start I stuck up with two possible options: Rhino and Spidermonkey. Could you please, tell me what is one, and what is another, so I can easily choose for myself the best option that suits my needs. If it makes easier for you, you can list advantages and disadvantages of both Javascript versions. It depends on what you're trying to do with JavaScript. If your intent is just to learn the language then I recommend using a web browser such as Chrome or Firefox and using their built-in (or addon) JavaScript consoles. As to your

I noticed ubuntu 10.04 removed the spidermonkey package. Rhino looks like it's still there though. What are the differences between rhino and spidermonkey (besides what language they're written in). And why did they remove spidermonkey? I'm afraid the difference is the language they are written in, or what it means. People use C/C++ to write all manner of things (like Firefox) whereas Java is most prevalent in Application Servers. From http://en.wikipedia.org/wiki/Rhino_%28JavaScript_engine%29 : Rhino converts JavaScript scripts into Java classes. Rhino works in both compiled as well as

In ES6, Maps and Sets can use Objects as keys. However since the ES6 specification does not dictate the underlying implementation of these datastructures, I was wondering how does the modern JS engines store the keys in order to guarantee O(1) or at least sublinear retrieval? In a language like Java, the programmer can explicitly provide a (good) hashCode method which would hash the keys evenly in the key space in order to guarantee the performance. However since JS does not have such features, would it still be fair to still assume they use some sort of hashing in the Maps and Sets

I've rolled my own javascript server side language called bondi. Just recently upgraded to the new spider monkey. Now that JS enter local roots and leave local roots function is gone/useless from the 1.8.5 api, is it enough to just use anchor pointer( JS_AnchorPtr(varname) ) at the end of your function calls to make sure the compiler isn't removing references to keep the garbage collector happy? I've been testing it by removing all my references to JS_EnterLocalRootScope ( see here ) / Leave local root scope and adding JS_AnchorPtr() to the bottom of the script. I looked up AnchorPoint