ForNext
Only Do What Only You Can Do
154. define method
Hyperpolyglot Interpreted Languages: Tcl, Lua, JavaScript, Io より (2012.05.08)
JavaScript
o.doubleScore = function() { return this.score * 2; };
Lua
function o.doubleScore(self) return 2 * self.score end
Io
o doubleScore := method(2 * score)