It might sound very trivial but this did not come across our minds at all when we were planning. It is to do with splitting a string to get an array of characters. This is trivial in a language like english, all we need to do was use

String.split('')

and the job is done. However, since we had to support other indian languages also, there was a huge problem. The problem is if you do

"अनुच्छेद".split('')

, it wont work anymore. The following array is returned

["अ", "न", "ु", "च", "्", "छ", "े", "द"]

.

To solve this problem, we googled a lot. And finally decided to ask a question on stackoverflow. We got an answer from someone from whom we learnt about graphemes, which was the key. We were finally able to find a module on NPM which did what we wanted to.