What is YAML?

YAML (YAML Ain't Markup Language) syntax is similar to other high-level languages and can simply express data structures like lists, dictionaries, and scalars. It uses indentation and relies heavily on appearance, making it ideal for representing or editing data structures, various configuration files, debugging output, and document outlines. Although it's best suited for hierarchical data models, YAML also has syntax for representing relational models. It uses whitespace and line breaks to separate data, which makes it particularly suitable for manipulation using tools like grep, Python, Perl, and Ruby. Its most user-friendly feature is avoiding many enclosing characters like quotes or brackets, which can become complex and hard to read in nested structures.

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