Untitled

function Foo(bar) {
    this.thing = bar
}

Foo.prototype.canRaep = function(other) {
    return this.thing > other.thing;
}

Foo.prototype.doRaep = function(other) {
    if (this.canRaep(other))
        return this.thing + ' raped ' + other.thing;
    return this.thing + ' could not rap ' + other.thing;
}

Foo.prototype.prepareRaep = function(other, cb) {
    setTimeout(function(this_) { cb(this_.doRaep(other)) }, 10, this);
}

alfa = new Foo('the alpha')
notalfa = new Foo('bayuh')
clayton = new Foo('Clayton')

console.log(alfa.doRaep(notalfa))
console.log(alfa.doRaep(clayton))
console.log(notalfa.doRaep(clayton))

clayton.prepareRaep(alfa, console.log)
clayton.prepareRaep(notalfa, console.log)