Strings and Numbers
Master JSON strings and numbers — encoding rules, escape sequences, numeric ranges, and practical usage patterns.
Booleans and Null
Understand JSON booleans and null — how they serialize, language mappings, and the coercion traps that cause production bugs.
JSON Objects
Learn the JSON object type — the unordered key-value container that maps to dicts, structs, and hashes in every major language.
JSON Arrays
Learn the JSON array type — the ordered sequence container for collections, pagination results, and streaming data.