84669 person learning
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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
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.
这样
try{ a=JSON.parse(param); }catch(e){ alert(e); //error in the above string(in this case,yes)! }
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
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.
这样
try{ a=JSON.parse(param); }catch(e){ alert(e); //error in the above string(in this case,yes)! }