function extendPrototype(sources,destination){ | |
var i, len = sources.length, sourcePrototype; | |
for (i = 0;i < len;i += 1) { | |
sourcePrototype = sources[i].prototype | |
for (var attr in sourcePrototype) { | |
if (sourcePrototype.hasOwnProperty(attr)) destination.prototype[attr] = sourcePrototype[attr]; | |
} | |
} | |
} | |
function getDescriptor(object, prop) { | |
return Object.getOwnPropertyDescriptor(object, prop); | |
} |