Today I attended Wakate IT Benkyou-kai (in English, "Young IT Study Meetup"?). We read Secrets of the JavaScript Ninja and today's chapter is "Code Evaluation". This book contains many real-world examples. We saw Caja, Prototype, json2.js, base2, Packer, Screw.Unit, Processing.js and Objective-J. For me, today's most striking code is json2.js. It has eval-based JSON parser and prevent unsafe code