Handlebars provide a very simple and sleek solution for microtemplating. You may like the simplicity of Handlebars for the first time. But with time your requirements may grow up and the simplicity may convert into pain as you will not be finding the common utility functions in Handlebars. In this article I have shown how to create a simple Handlebar helper for "substring". We will see how we can pass parameters to the helper functions in Handlebars.