OPL is the modeling language used in CPLEX. It's the most powerful mathematical & constraint programming language that I know of. If you ended up here, you're probably an OPL believer yourself!

• opl_json.js
  • Provides a javascript implementation to export objects in OPL to JSON
• opl_print.js
  • Provides (s)printf functions using Java interfacing
• opl_popups.js
  • Provides window alerts & confirmations using Java interfacing
• sudoku.mod
  • A CP model to solve sudoku grids
• sudoku_samurai.mod
  • A CP model to solve samurai sudoku grids

-- OPL only has very basic javascript functionality e.g.

• typeof checks can't have type coercion,
• there's no RegExp, no array.push, ...

Hence these tools :)

-- Example:

dvar int x[R];
// ..
execute {
  includeScript("jsonopl.js");
  writeln(stringify(x));
}