Checking for lowercase and/or uppercasing

[Enjoii]

I'm creating something where I need to check a string to see if it has either a lowercase or uppercase letter. I'm wondering how I would check a string for a lowercase letter (it being any alphabetical letter) or uppercase. Any help will be appreciated, thanks.
- tb

[Enjoii]

Nevermind I have figured out how to do it by using char... I remembered the function after another language. Heres the code for anyone who needs it:

Code: Select all

        function doesContainLowerCase(data){ // chars: 97-to-122
         var found;
         for(d=0;d<data.length;d++){
          for(i=97;i<122;i++){
           charToChk = String.fromCharCode(i);
            if(data.charAt(d)==charToChk){found=1;break;}else{found=0;}
          }
          if(found==1){break;}
         }
         return found;
        }
       
        function doesContainUpperCase(data){ // chars: 65-to-90
         var found;
         for(d=0;d<data.length;d++){
          for(i=65;i<90;i++){
           charToChk = String.fromCharCode(i);
            if(data.charAt(d)==charToChk){found=1;break;}else{found=0;}
          }
          if(found==1){break;}
         }
         return found;
        }