Data types represent various kinds of data. Advanced data types, which are going to allow us to define multiple elements under a single key.

Inside YAML sequences, which are also known as Collections or List are used to represent ordered list of items.

 

Collections

• Sequences
  • Block Type
    • Block sequences indicate each entry with dash and a space
      • This approach uses indentation to define the hierarchy of elements
      • 
  • Flow Type Sequence
    • More compact and json type
    • uses square brackets to define a sequence 
      • 
  • Nested Type - combination of both
    • s
      • 

 

• Sequences Mapping

 

 

List

• we should be able to store the duplicate elements.
• Set
  • we can't store the duplicate elements.
• Mapping
  • Sequence Mapping