javascript 如何验证 JSON 字符串 JQuery
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How to validate a JSON String JQuery
提问by kamaci
I tried that:
我试过了：
var c = $.parseJSON(something here)
and I control that:
我控制：
c === undefined
This works however it throws error while trying to parse an invalid JSON string. I don't want it throw that error.
这有效，但是在尝试解析无效的 JSON 字符串时会引发错误。我不希望它抛出那个错误。
Any advices?
有什么建议吗？
回答by Clive
It's generally considered bad practice to suppress/ignore errors, instead why not use a try-catch blockto capture the exception and do something with it:
抑制/忽略错误通常被认为是不好的做法，为什么不使用try-catch 块来捕获异常并对其进行处理：
try {
var c = $.parseJSON(something here);
}
catch (err) {
// Do something about the exception here
}
If you really don't need to do anything about the exception at least put a comment to that effect in your try-catchblock, it'll make your code more readable when you come back to it later.
如果你真的不需要对异常做任何事情，至少在你的try-catch块中添加一个注释，它会让你的代码在你稍后回来时更具可读性。
