evalmachine.<anonymous>:1
Drinks.prototype._toHtml = function() {
^
ReferenceError: Drinks is not defined
at evalmachine.<anonymous>:1:1
at ContextifyScript.Script.runInThisContext (vm.js:25:33)
at Object.runInThisContext (vm.js:97:38)
at run ([eval]:1020:15)
at onRunRequest ([eval]:864:18)
at onMessage ([eval]:828:13)
at emitTwo (events.js:106:13)
at process.emit (events.js:191:7)
at process.nextTick (internal/child_process.js:758:12)
at _combinedTickCallback (internal/process/next_tick.js:73:7)