YAML (a recursive acronym for "YAML Ain't Markup Language") is a human-readable data-serialization language. It is commonly used for configuration files and in applications where data is being stored or transmitted.
YAML uses both Python-style indentation to indicate nesting, and a more compact format that uses [...] for lists and {...} for maps.
Three hypen (---) used for separation multiple document in same stream, so it commonly to put three hypen in beginning of YAML file.
Comments begins with the number sing (#), it can start enywhere and continue till end of the line.
Simple list
--- # Favorite movies
- Casablanca
- North by Northwest
- The Man Who Wasn't There
Examples of keys in two forms:
--- # Indented Block
name: John Smith
age: 33
--- # Inline Block
{name: John Smith, age: 33}
Examples of nesting:
--- #List of Students
- student1:
name: Delilah Wisneski
age: 17
sex: Female
- student2:
name: Colin Bonds
age: 43
sex: Male
- student3:
name: Douglass Burleigh
age: 27
sex: Male
hobby: >
Furniture building, Gaming (tabletop games and
role-playing games), Genealogy, Gingerbread house
making, Glassblowing
- student4:
name: Loriann Willman
age: 18
sex: Female