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YAML Syntax and Structure

In YAML, indentation is used to indicate the structure of a document.


Indentation refers to the number of spaces or tabs used to align elements in a YAML file.

In YAML, spaces are used for indentation, not tabs.

The file extension commonly used for YAML files is .yaml or sometimes .yml.

If you are using Visual Studio Code as your code editor, make sure to select Indent using spaces. This will ensure that the tabs are considered as spaces. (To indent using spaces, press Cmd+Shift+P on Mac or Ctrl+Shift+P on Windows and Linux, then search for Indent using spaces).

Comment in YAML

In YAML, you can include comments by using the # symbol. Any text following the # symbol on a line will be treated as a comment and ignored by the parser.

# This is a comment
key: value  # This is another comment

Document Seperator in YAML

In YAML, --- is used as a document separator. It is used to separate multiple documents within a single YAML file.

For example, if you have two YAML documents in a single file, you can use --- to separate them, as shown below:

# YAML document 1
key1: value1
key2: value2

# YAML document 2
key3: value3
key4: value4