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Convert RGB to RGBA over white
I have a hex color, e.g. #F4F8FB (or rgb(244, 248, 251) ) that I want converted into an as-transparent-as-possible rgba color (when displayed over white). Make sense? I'm looking for an algorithm, or at least idea of an algorithm for how to do so.
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Clearing NSUserDefaults
...g +[NSUserDefaults standardUserDefaults] to store application settings. This consists of roughly a dozen string values. Is it possible to delete these values permanently instead of just setting them to a default value?
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Javascript - How to detect if document has loaded (IE 7/Firefox 3)
I want to call a function after a document loads, but the document may or may not have finished loading yet. If it did load, then I can just call the function. If it did NOT load, then I can attach an event listener. I can't add an eventlistener after onload has already fired since it won't get cal...
How do I check what version of Python is running my script?
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Comparing two CGRects
I needed to check wether the frame of my view is equal to a given CGRect. I tried doing that like this:
4 Answers
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how to run two commands in sudo?
Is there any way how I can run two Db2 commands from a command line? (They will be called from a PHP exec command.)
10 An...
git pushes with wrong user from terminal
I have an issue with git and my terminal.
20 Answers
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Confusion about vim folding - how to disable?
I have these set up in .vimrc :
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Difference between StringBuilder and StringBuffer
What is the main difference between StringBuffer and StringBuilder ?
Is there any performance issues when deciding on any one of these?
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rails 3.1.0 ActionView::Template::Error (application.css isn't precompiled)
I made a basic rails app with a simple pages controller with an index function and when I load the page I get:
14 Answers
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