YAML syntax is similar to other high-level languages and can express lists, maps, and scalars. It uses indentation and is well-suited for data structures, config files, and debug output. YAML supports hierarchical and relational data. It uses whitespace and line breaks to separate data, making it easy to grep or process with Python/Perl/Ruby. A key advantage is avoiding complex delimiters like quotes and brackets that often clutter nested structures.
