为什么认为 console.log() 比 alert() 更好? [英] Why is console.log() considered better than alert()?
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问题描述
我一直被告知在调试应用程序时,JavaScript 的 console.log()
方法优于简单地使用 alert()
方法.为什么是这样?有没有一个很好的例子,有人可以向我指出 console.log()
显然是更好的选择?
I've always been told that when debugging an application, JavaScript's console.log()
method is preferred over simply using an alert()
method. Why is this? Is there a good example someone can point me to where console.log()
is obviously the better choice?
推荐答案
alert()
正在阻塞alert()
在非调试环境中不容易被抑制console
通常很好地格式化您的对象并允许遍历它们- 日志语句通常有一个交互式指针,指向发出日志语句的代码
- 您不能一次查看多个
alert()
消息 console
s 可以有不同的日志级别和直观的格式alert()
is blockingalert()
cannot be easily suppressed in non-debug environmentconsole
typically formats your objects nicely and allows to traverse them- logging statements often have an interactive pointer to code which issued logging statement
- you cannot look at more than one
alert()
message at a time console
s can have different logging levels with intuitive formatting
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