js中怎么判断一个字符串能否转成对象？

Question

比如一个函数

function some(param) {    //判断param能否转成json对象
    //...
    return JSON.parse(param);
}

怎么判断呢

Answer 1

How to determine whether a string can be converted into an object in js? -PHP Chinese website Q&A-How to determine whether a string can be converted into an object in js? -PHP Chinese website Q&A

Let’s take a look and learn.

Answer 2

这样

try{
    a=JSON.parse(param);
}catch(e){
    alert(e); //error in the above string(in this case,yes)!
}