I work on a really complex at Mozilla but, and don't tell my colleagues, I sometimes enjoy simply using console.log and other console commands to get some simple output.  I know, I know, but hey -- whatever gets the job done.  A few years ago I detailed  for measuring time for a given set of tasks; let me show you console.timeLog, a new function in Firefox Nightly for logging events during a console.time timer!

我在Mozilla上开发了一个非常复杂的 ，但是，不告诉同事，有时我会喜欢简单地使用console.log和其他console命令来获得一些简单的输出。 我知道，但是，嘿-一切都能完成。 几年前，我详细介绍了 用于测量给定任务集的时间。 让我向您展示console.timeLog ，这是Firefox Nightly中的一项新功能，用于在console.time计时器期间记录事件！

Start by kicking off the timer with a name of your choice:

首先使用您选择的名称启动计时器：

console.time("MyApp");

Whenever you want the intermediate timer value, as well as extra information like variable or object values, you can use console.timeLog:

每当您需要中间计时器值以及诸如变量或对象值之类的额外信息时，都可以使用console.timeLog ：

// Same timer name, provide sublabel and optional infoconsole.timeLog("MyApp", "constructor"); // MyApp: 4ms constructorconsole.timeLog("MyApp", "render", this.state);// MyApp: 2ms render Object { disabled: false }

When your timed tasks have completed, you can call console.timeEnd to stop the timer:

定时任务完成后，可以调用console.timeEnd停止计时器：

console.timeEnd("MyApp");// MyApp: 10ms

Firefox has a Performance tab for very detailed performance metrics but, as always, the console is a great way to get some basic insight at a glance.  The timeLog function is an awesome way to get intermediate timing and information while your script runs!

Firefox的“性能”选项卡提供了非常详细的性能指标，但是与往常一样，控制台是一目了然的基本了解的好方法。 timeLog函数是一种很棒的方式，可以在脚本运行时获取中间时间和信息！

翻译自: