title: How can I format a label caption?
body: <p>Here's what I want to do. I have a caption that changes every time someone uses the app. The caption is a number... and now it appears like a regular number 123456 ... I want to add "," every 3 digits and I really don't know how to do it because the number doesn't have the same number of digits every time... (I want it to be 123,456 instead of 123456 or 1,234,567... and so on). Thanks!</p>