YAML is a whitespace-sensitive, indentation-based serialization language that represents maps and sequences without mandatory delimiters like or < >. Tools such as Ansible playbooks, Kubernetes manifest files, and many CI/CD pipelines natively use YAML. JSON (curly braces and commas), XML (angle-bracket tags), and INI (section headers with key=value pairs) do not rely on indentation to define structure.
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What is the format that relies on indentation to handle nested structures?
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Why might YAML be better than JSON for some use cases?
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What are some use cases where YAML is commonly used?