Question

Alright, I find the code below to be quite repetitive and annoying. Any other way to refactor the code without using an array as a starting point (that is, to avoid using array[x], array[y], array[z] later on in the code as a result of starting with an array because x,y,z are completely unrelated and it makes no sense to group them for the sake of readability)

var x = ""; var y = ""; var z = ""; ...  ...variables get set  if(x != undefined && x != "")     doSomethingHere();  if(y != undefined && y != "")     doSomethingThere();  if(z != undefined && z != "")     doSomethingElse(); ... 

Answer 1

In addition to what joel said you could also do the following:

function doOnValid(x, func){  if(x != undefined && x != '') func(); } 

Then you could do:

doOnValid(x, doSomething); doOnValid(y, doSomethingElse); doOnvalid(z, function() { /*Yay lambda function*/ });