Javascript有什么调试日志工具？ [英] What debug logging tools are available from Javascript?

问题描述

我想创建一个通用调试日志记录功能，用于检查知名日志记录库的JS命名空间。

I'd like to create a "universal" debug logging function that inspects the JS namespace for well-known logging libraries.

例如，目前它支持Firebug console.log：

For example, currently it supports Firebug's console.log:

var console = window['console'];
if (console && console.log) {
  console.log(message);
}

显然，只有在Firebug安装/也可以在其他浏览器上使用 Firebug Lite ）。基本上，我将提供一个JS库，我不知道它会被拉入到什么环境，我想要能够找出是否有一种方法来报告调试输出给用户。

Obviously, this only works in Firefox if Firebug is installed/enabled (it'll also work on other browsers with Firebug Lite). Basically, I will be providing a JS library which I don't know what environment it will be pulled into, and I'd like to be able to figure out if there is a way to report debug output to the user.

所以，也许jQuery提供了一些东西 - 我会检查jQuery是否存在并使用它。或者也许有知名的IE插件工作，我可以嗅探。但它必须是一个相当完善和使用的机制。我不能检查人们创建的每一个模糊日志函数。

So, perhaps jQuery provides something - I'd check that jQuery is present and use it. Or maybe there are well-known IE plugins that work that I can sniff for. But it has to be a fairly well-established and used mechanism. I can't check for every obscure log function that people create.

请每个答案只有一个库/技术，所以他们可以获得排名。此外，使用alert（）是一个很好的短期解决方案，但如果你想要强大的调试日志记录或阻塞执行是一个问题，则会中断。

Please, only one library/technology per answer, so they can get vote-ranked. Also, using alert() is a good short-term solution but breaks down if you want robust debug logging or if blocking the execution is a problem.

推荐答案

您可以尝试 log4javascript 。

披露：我写了。

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