为什么 console.log() 被认为比 alert() 更好? [英] Why is console.log() considered better than alert()?

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
• consoles 可以有不同的日志级别和直观的格式
• alert() is blocking
• alert() cannot be easily suppressed in non-debug environment
• console 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
• consoles can have different logging levels with intuitive formatting

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