One thing I've sometimes wondered is which is the better style out of the two shown below (if any)? Is it better to return immediately if a guard condition hasn't been satisfied, or should you only...

I've seen this a lot: $fp = fopen($filepath, "w") or die(); But I can't seem to find any real documentation on this "or" syntax. It's obvious enough what it does, but can I use it anywhere? And mus...

How can I break out of the begin block and jump to the rescue block? def function begin @document = Document.find_by(:token => params[:id]) next if @document.sent_at < 3.days.ago # how ca...

This question is related to Javascript event handling and flow control, but it is one step beyond. The question that remains unanswered is: when an event is fired and control is returned to the bro...

This is perhaps a painfully basic question to answer, but I'm wondering about performance issues regarding using PHP's if identical !== versus if equal != to control flow. Consider the following t...

I copy a piece of code from SO as an example. The subroutine contains an error handler. Should one make an error handler for all Subs? Public Sub SubA() On Error Goto ProcError Connection.Open ...

This is what I'm doing now. Is there a better way to access the super class? public class SearchWidget { private void addWishlistButton() { final SearchWidget thisWidget = this; button.addClick...

I've been developing Web applications for a while now and have dipped my toe into GUI and Game application development. In the web application (php for me), a request is made to the file, that fil...