Functions
You have seen quite a lot of JavaScript already, and now you are ready for functions. Soon you will see that you have been using functions already, but now it is time to learn how to start writing your own. Functions are a great building block that will reduce the amount of code you will need in your app. You can call a function whenever you need it, and you can write it as a kind of template with variables. So, depending on how you've written it, you can reuse it in many situations.
They do require you to think differently about the structure of your code and this can be hard, especially in the beginning. Once you have got the hang of this way of thinking, functions will really help you to write nicely structured, reusable, and low-maintenance code. Let's dive into this new abstraction layer!
Along the way, we will cover the following topics:
- Basic functions
- Function arguments
- Return
- Variable scope in functions
- Recursive...
