Javascript 对象无法与 native javascript 方法(如 match()、替换等)一起使用

Question

问题是这样的:

我去这个代码:

var str = {"Acc":10 , "adm_data":"Denied"};

当我做类似的事情时:

console.log(str.Acc.match(/[0-9]+/g)) // To Get the Integer Value from the "Acc" key

Firebug 尖叫声:

TypeError: str.Acc.match is not a function

console.log(str.Acc.match(/[0-9]+/g));

看图片:

我总是做这样的事情:

var str = "Hello _10";

console.log(str.match(/[0-9]+/g)) // This Works

为什么Object东西不工作？

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PLEASE NOTE:

As mentioned by @Fabrício Matté. The issue was that I was trying to pass an integer Value to the .match method which does not belong to integers. The solution was to do what @kundan Karn Suggested. Something like: str.Acc.toString().match(/[0-9]+/g)// Converting it first to string then match. It worked!

Answer 1

match 函数适用于字符串。所以先将其转换为字符串

str.Acc.toString().match(/[0-9]+/g)