YAML

YAML, like many other data serialization languages (such as JSON), has very few, basic concepts:

• Declarations
• Lists
• Associative arrays

A declaration is very similar to a variable in any other language, which is as follows:

name: 'This is the name'

To create a list, we will have to use -:

- 'item1' 
- 'item2' 
- 'item3' 

YAML uses indentation to logically divide parents from children. So, if we want to create associative arrays (also known as objects), we would just need to add an indentation:

item: 
  name: TheName 
  location: TheLocation 

Obviously, we can mix those together as follows:

people:
  - name: Albert 
    number: +1000000000 
    country: USA 
  - name: David 
    number: +44000000000 
    country: UK 

Those are the basics of YAML. YAML can do much more, but for now, this will be enough.