YAML Formatting Guide: Indentation, Quotes, and Common Mistakes
Format YAML correctly: use consistent 2-space indentation, know when to quote strings, avoid tab characters, and debug indent errors fast.
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Tags: data, yaml, formatting
YAML Formatting Guide: Indentation, Quotes, and Common Mistakes YAML's "human-readable" reputation is conditional. Badly formatted YAML is harder to read than JSON. A missing space after a colon, inconsistent indentation, or an unquoted value that parses as the wrong type will silently break your config — and the error message usually points to somewhere downstream, not the actual problem. This guide covers every formatting decision you'll face writing YAML, with specific rules you can follow and linting tools to enforce them automatically. Quoting: When and What Knowing when to quote is the difference between YAML that works and YAML that silently misbehaves. The Short Rule Quote values when: The value starts with a special character The value would be parsed as the wrong type The value…
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