Google Closure Compiler + @struct = new property definition outside of constructor is forbidden. Or DEBUG_ON && Object.seal(this); at the end of every construc

Google Closure Compiler + @struct = new property definition outside of constructor is forbidden. Or DEBUG_ON && Object.seal(this); at the end of every constructor. Here, I've fixed "Hobjects" for you. JavaScript allows you to write shitty code, but whether you do it or not is just a matter of skills and tools.