There are other types that are objects, arrays, and functions. Objects are used to hold data as properties as well as perform tasks via defined functions when they are attached to an Object most refer to them as methods. Arrays also hold data but that is their main purpose. Function executes a snippet of logic takes parameters and usually returns values. Here are a few examples of the more complex types as follows:
To open a scratch pad just click on the orange Firefox menu in the top left corner of the browser and then select Web Developer = > Scratch pad
You will find that this opens in the browser and congratulations you are starting to code like Vikings. I'll catch you next week with some more fun.