JDAD

An extremely tiny JSON parser written in Js to learn how recursive descent parsing works. The parser’s design is inspired by Monads and is just 34 SLOC!

Usage

# Parsing a file
node src/index.js test/twitter.json

# Benchmark against JSON.parse
node src/index.js test/twitter.json bench

Limitations

• Extremely slow! 50-100 times slower than JSON.parse.
• Does not show where a syntax error occurred. It just returns null when an invalid JSON is encountered.
• Does not unescape escape sequences. It does now!