How to make string campatible for JSON.parse()

Question

In my application when I enter value as my"name in text field the framework makes a String like (this i can not control):

"[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]"

Now this String is passed to JSON.parse() method which produces an error because of ambiguous name field as

\"name\":\"my\"name\"

var str = JSON.parse("[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]")

This results in JSON exception

Is there anything I can do with the string:

"[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]"

To escape double quote character in my " name as my \" name to make it valid for JSON.parse method.

I can not control JSON String, I am just passing name as my"name and framework creates a String which is passed to JSON.parse()

Possible duplicate of [JSON.parse string with quotes](http://stackoverflow.com/questions/3066886/json-parse-string-with-quotes) — diziaq, Dec 23 '15 at 05:16
I am not controlling the JSON string I am just passing the name and framework constructs it for me which I have to manipulate before doing JSON.parse() — quintin, Dec 23 '15 at 05:20
Garbage in - garbage out. You or your framework do not know how to escape strings. Show the code - how you "enter value" and pass it to this framework. — Yeldar Kurmangaliyev, Dec 23 '15 at 05:20
I enter value in a JSP which is read and converted into the JSON string without escaping intelligence framework code is not in my control. So i can only play with the result screen "[{\"id\":\"0\",\"name\":\"\"\",\"colorCode\":\"\",\"version\":\"0\",\"nodeOrder\":\"1\"}]" — quintin, Dec 23 '15 at 05:27
@rjoshi What will it output if you enter **`my\"name`**, **`my\name`**? — Yeldar Kurmangaliyev, Dec 23 '15 at 05:28
@Yeldar then it save name as my"name for my\"name and same exception in 2nd case — quintin, Dec 23 '15 at 05:31

Tom Sebastian · Answer 1 · 2015-12-23T07:03:57.920

0

I went through a series of text replace. You can try this:

var str = "[{\"id\":\"201500000001002\",\"name\":\"my\"name\",\"colorCode\":\"\",\"version\":\"11\",\"nodeOrder\":\"1\"}]";

JSON.parse(
str.replace(/\\/i,"").
replace(/{"/g,"{'").
replace(/":"/g,"':'").
replace(/","/g,"','").
replace(/"}/g,"'}").
replace(/'/g,"\@@@").
replace(/"/g,"\\\"").
replace(/@@@/g,"\"")
);

It will give back your desired JSON array

edited Dec 23 '15 at 07:03

answered Dec 23 '15 at 06:48

Tom Sebastian

3,373
5
29
54

following output i am getting [object Object], its not working – quintin Dec 23 '15 at 08:29

score -1 · Answer 2 · answered Dec 23 '15 at 05:25

-1

var str = "[{\"id\":\"201500000001002\"}]";
str.replace("\"*","\\\"");
var obj = JSON.parse(str);

answered Dec 23 '15 at 05:25

arun

107
6

`str.replace` won't do anything unless you assign its result back to `str`. Furthermore, this will fail on the OP's example of `\"name\":\"my\"name\"`. – Dec 23 '15 at 05:28

How to make string campatible for JSON.parse()

2 Answers2