Javascript JSON.parse 意外字符错误
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JSON.parse unexpected character error
提问by krishna
I get this error:
我收到此错误：
JSON.parse: unexpected character
JSON.parse：意外字符
when I run this statement in firebug:
当我在 firebug 中运行此语句时：
JSON.parse({"balance":0,"count":0,"time":1323973673061,"firstname":"howard","userId":5383,"localid":1,"freeExpiration":0,"status":false});
Why is it so? The JSON string seems correct to me and I also tested it using JSHint. The passed object in the above case is a server response with content type set to application/json
为什么会这样？JSON 字符串对我来说似乎是正确的，我还使用 JSHint 对其进行了测试。上述案例中传递的对象是内容类型设置为的服务器响应application/json
回答by kennytm
You're not parsing a string, you're parsing an already-parsed object :)
您不是在解析字符串，而是在解析已解析的对象:)
var obj1 = JSON.parse('{"creditBalance":0,...,"starStatus":false}');
// ^ ^
// if you want to parse, the input should be a string
var obj2 = {"creditBalance":0,...,"starStatus":false};
// or just use it directly.
回答by ScrapCode
You can make sure that the object in question is stringified before passing it to parse function by simply using JSON.stringify().
您可以通过简单地使用 JSON.stringify().
Updated your line below,
在下面更新了您的行，
JSON.parse(JSON.stringify({"balance":0,"count":0,"time":1323973673061,"firstname":"howard","userId":5383,"localid":1,"freeExpiration":0,"status":false}));
JSON.parse(JSON.stringify({"balance":0,"count":0,"time":1323973673061,"firstname":"howard","userId":5383,"localid":1,"freeExpiration":0,"status":false}));
or if you have JSON stored in some variable:
或者如果您将 JSON 存储在某个变量中：
JSON.parse(JSON.stringify(yourJSONobject));
回答by atomh33ls
Not true for the OP, but this error can be caused by using single quotation marks (') instead of double (") for strings.
对于 OP 而言并非如此，但此错误可能是由对字符串使用单引号 ( ') 而不是双引号 ( )引起的"。
The JSON specrequires double quotation marks for strings.
的JSON规范需要字符串双引号。
E.g:
例如：
JSON.parse(`{"myparam": 'myString'}`)
gives the error, whereas
给出错误，而
JSON.parse(`{"myparam": "myString"}`)
does not. Note the quotation marks around myString.
才不是。注意周围的引号myString。
