In this what is the role of #ifdef and #ifndef , and what's the output? 4 Answers 4...

I want to get the date from datepicker whenever user choose the date in jQuery UI datepicker and click the button on the form. ...

I've seen docs/websites show that custom validators should go in a /lib or /lib/validators directory of a project. I've found (by reading an answer to another post) that they only seem to work in config/initializers . Does anyone know, or have a pointer to official documentation that shows wher...

I want to remove the underlines from texts inside edittext fields. 6 Answers 6 ...

Is there a way I can make a query in MySQL that will give me the difference between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that? ...

I have a Git repository with many branches, some of them already merged and some not. Since the number of branches is quite large, how can I determine which branches have not yet been merged? I would like to avoid having to do an "octopus" merge and re-merging branches that have already been merged....

I'm compiling my C++ app using GCC 4.3. Instead of manually selecting the optimization flags I'm using -march=native , which in theory should add all optimization flags applicable to the hardware I'm compiling on. But how can I check which flags is it actually using? ...

I want to move away from PHP a little and learn Python. In order to do web development with Python I'll need a framework to help with templating and other things. ...

I want to change the color of my hr tag using CSS. The code I've tried below doesn't seem to work: 26 Answers ...

Attempting to use a custom hex color for my css triangle (border). However since it uses border properties I am unsure how to go about doing this. I would like to steer clear of javascript and css3 simply because of compatibility. I am trying to have the triangle have a white background with a 1px b...