javascript alert() 返回的结果与 console.log() 不同？
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alert() return different from console.log()?
提问by orolo
Should I be using alert() for debugging; or is there a time to use alert() vs. console.log()?
我应该使用 alert() 进行调试吗？或者有时间使用alert() 还是console.log()？
I see that alert() and console.log() can return different results. I assumed that they were similar functions but just returned in different places.
我看到 alert() 和 console.log() 可以返回不同的结果。我认为它们是相似的功能，只是在不同的地方返回。
Back story: my boss likes to see alerts() during development but I can't get the object details in the alert (at least not easily).
背景故事：我的老板喜欢在开发过程中查看 alerts() 但我无法在 alert 中获取对象详细信息（至少不容易）。
But when I run the same request through console.log, I get the object and all of it's parameters.
但是当我通过 console.log 运行相同的请求时，我得到了对象及其所有参数。
回答by Sid_M
Since alert could be shown to users, it tends to be literal-minded (just using toString) so a developer has a lot of control over what's shown to the user. Unlike alert, console is designed for developers, and thus tends to try to interpret a call so as to provide information that a developer would find useful: e.g. "[2, 3, 4]" is a lot more useful to a developer than "[object Object]". Alert should be the same in every browser; console's behavior could vary from browser to browser (including not being supported at all, as in IE).
由于警报可以显示给用户，它往往是字面意思（仅使用 toString），因此开发人员可以对显示给用户的内容进行很多控制。与警报不同，控制台是为开发人员设计的，因此倾向于尝试解释调用以提供开发人员认为有用的信息：例如，“[2, 3, 4]”对开发人员比“ [对象对象]”。警报在每个浏览器中都应该相同；控制台的行为可能因浏览器而异（包括根本不支持，如在 IE 中）。
回答by Michelangelo Giacomelli
try alert(JSON.stringify(yourObject)); (if your browser have json.stringify....)
尝试警报（JSON.stringify（你的对象））；（如果你的浏览器有 json.stringify ....）
回答by Tim Down
alert()converts the object passed to it into a string using the object's toString()method. Unlike alert(), console.log()is not limited to displaying a simple string and can allow you to interact with the object passed to it, for example letting you inspect its properties.
alert()使用对象的toString()方法将传递给它的对象转换为字符串。与alert(),console.log()不限于显示简单的字符串，并且可以允许您与传递给它的对象进行交互，例如让您检查其属性。
