替换两套重复字符之间的句点的所有实例

Question

I Have a JSON block of code that I'm being sent by a vendor. Before I can use it, I have to manipulate all the keys (approx 65) to remove periods or it interfere's with my applications usage. Trying to use a regex pattern with a JS replace function to replace them with underscores. Presume I have the following string:

JSON_String = '{ "Test.String.One" : "Answer.One" ,  "Test.String.Two" : "Answer.Two" , "Test.String.Three" : "Answer.Three"}';

I need a Regex Pattern that will replace all the periods in the keys but not in the values. So that would be all periods either between { and : or between , and :

The result when done should look like this:

JSON_String = '{ "Test_String_One" : "Answer.One" ,  "Test_String_Two" : "Answer.Two" , "Test_String_Three" : "Answer.Three"}';

The application is using a Rhino implementation of Javascript so some things like the \\K don't appear to work (unless I did something wrong in my testing).

Anybody who can provide the right search pattern to accomplish this?

I'm not against using a loop if it can't be done in one call.

something like the below would be fine. I just need to get something working.

while (JSON_String.search(/regex/g) != -1)
{
  JSON_String = JSON_String.replace(/regex/g,'_')
}

Answer 1

You could do it with regex but it may be more complicated than what you need to do. This can easily be accomplished with Object.keys() and .replace() :

 var JSON_String = { "Test.String.One" : "Answer.One" , "Test.String.Two" : "Answer.Two" , "Test.String.Three" : "Answer.Three"}; document.querySelectorAll('code')[0].innerHTML = JSON.stringify(JSON_String); function UnderscoreKeys(obj) { var keys = Object.keys(obj), temp = {}; for(var a = 0, len = keys.length; a < len; a++) { temp[keys[a].replace(/\\./g, "_")] = obj[keys[a]]; } return temp; } JSON_String = UnderscoreKeys(JSON_String); document.querySelectorAll('code')[1].innerHTML = JSON.stringify(JSON_String); 

 <strong>Before:</strong><br /> <pre> <code> </code> </pre> <br /><br /><strong>After:</strong><br /> <pre> <code> </code> </pre> 

Answer 2

you can simply use.

    function underscore(){
     var a = dotted = JSON.parse(JSON_string), underscored = {};
     for(var i in dotted){
          underscored[i.repace(/\./, "_")] = dotted[i];
       }
     return JSON.stringify(underscored)
  }