I believe one on the most used front end tools in the web development world is out there is Moustache or Handlebars. It is easy to use; you can write native HTML and compelling too.
In the SharePoint world, many web parts directly show data on the page, and therefore this is the right weapon of choice to get fast going.
Right after the first version of SPFx become public available, I created a ticket in GitHub on how to use this front end tool. With the RC0 drop of the framework, a new functionality has become available that allows you to embed Handlebars through a so-called webpack loader. I was pretty excited when Pat Miller tweeted me about this.
Here is how to extend WebPack configuration in #spfx RC0 – https://t.co/UEBIe6zoHj . I think @StfBauer was asking about this a while ago.
— Pat Miller (@PatMill_MSFT) January 13, 2017
Let me show and explain what steps are required to make use of it in your next project.