Everything you need to know about YAML!

Yet Another Markup Language (Previous Full-Form)

YAML Ain't Markup Language (Present Full-Form)

A simple human-readable language that can be used to represent data

YAML is not a programming language

It is a data format used to exchange data

Similar to JSON & XML

Used to store some information about some configurations

In YAML, you can only store data, not commands.

Serialization is the process of converting the data object that is present in a complex data structure into a steam of bytes(or storage) that can be used to transfer this data on your physical device. or A process of converting this data object into series of bytes tat saves the state of the object which is easily transmittable.

The reverse of data serialization is data deserialization.

Combination of code and data. It is basically a data storage unit.

YAML

XML

JSON

Markup language are used to store only documents but in YAML, you can store object data along with documents. That's why it is not considered as a Markup Language.

Used in configuration files, such as Docker / Kubernetes, etc.

Logs, caches, etc.

It is simple and easy to read

It has a strict syntax. (Indentation is important)

Easily convertible to JSON, XML

Most languages use YAML

It is more powerful when representing complex data

Parsers, etc. various tools available

Parsing is easy. (Parsing means reading the data)

YAML is case senitive. [apple != Apple]

In YAML, we use spaces for indentation not Tabs

In YAML, there is no multi-line comments. (only single is comment is available)

To seperate blocks of code and treat them as documents in a YAML files use( --- )

To mark as the end of document use ( ... )

Some of the keys of the sequence will be empty and is known as sparse sequence.