how to perform split function in java script

How about giving some information about the issue, and not ask in such a vague and generalizing way? I know that this question in you mind makes perfect sense, but we don't have access to your cerebral cortex so we cannot see this question with your biases. Please don't be afraid to draw, explain with long sentences or make a "psudocode" example. We would all like to help but we need the information to help you!