empty-values.md

Pattern: Node with empty content

Issue: -

Description

This rule forbids nodes with empty content, that implicitly result in null values.

Configuration

• Use forbid-in-block-mappings to prevent empty values in block mappings.
• Use forbid-in-flow-mappings to prevent empty values in flow mappings.

Examples

1. With empty-values: {forbid-in-block-mappings: true}

   the following code snippets would PASS:

   some-mapping:
     sub-element: correctly indented
   
   explicitly-null: null
   

   the following code snippets would FAIL:

   some-mapping:
   sub-element: incorrectly indented
   
   implicitly-null:
   

2. With empty-values: {forbid-in-flow-mappings: true}

   the following code snippet would PASS:

   {prop: null}
   {a: 1, b: 2, c: 3}
   

   the following code snippets would FAIL:

   {prop: }
   
   {a: 1, b:, c: 3}
   

Further Reading

• Yamllint - empty_values