Question

I have a string looks like:

var myString= '{"key1":"value1", "key2":"value2", "key3":"value3"}';

What I want is to remove double qoutes and other special chars only from value3 … for example some times we have string looks like:

var myString= '{"key1":"value1", "key2":"value2", "key3":"This is "value" with some special chars etc"}';

Please note I do not want to remove double quotes after colon and before This and similarly I do not want to remove last double quotes. I just want to modify string so it will become:

var myString = '{"key1":"value1", "key2":"value2", "key3":"This is value with some special chars etc"}';

Answer 1

Simple…

var myNewString = eval( '('+ myString +')');

var toBeEscaped = myNewString.key3;

var escapedString = doYourCleanUpStuff(toBeEscaped);

myNewString.key3 = escapedString;

myNewString = JSON.stringify(myNewString);

===============

What did I do?

1) Your string looks like valid JSON.

2) Cast it into JSON object. (using eval() )

3) Retrieve value of key3 and catch it in some temp variable.

4) Do cleanup things with this temporary variable.

5) assign cleaned up temporary variable back to key3.

6) Stringify the JSON.

Don’t go around beating bush with array manipulation and split functions, especially when there are simpler ways 🙂