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How to change the background color of a UIButton while it's highlighted?
At some point in my app I have a highlighted UIButton (for example when a user has his finger on the button) and I need to change the background color while the button is highlighted (so while the finger of the user is still on the button).
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Add x and y labels to a pandas plot
Suppose I have the following code that plots something very simple using pandas:
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Get string character by index - Java
I know how to work out the index of a certain character or number in a string, but is there any predefined method I can use to give me the character at the nth position? So in the string "foo", if I asked for the character with index 0 it would return "f".
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Remove all special characters, punctuation and spaces from string
I need to remove all special characters, punctuation and spaces from a string so that I only have letters and numbers.
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How can I suppress all output from a command using Bash?
I have a Bash script that runs a program with parameters. That program outputs some status (doing this, doing that...). There isn't any option for this program to be quiet. How can I prevent the script from displaying anything?
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Where can I find the “clamp” function in .NET?
I would like to clamp a value x to a range [a, b] :
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Append values to a set in Python
I have a set like this:
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Emacs bulk indent for Python
Working with Python in Emacs if I want to add a try/except to a block of code, I often find that I am having to indent the whole block, line by line. In Emacs, how do you indent the whole block at once.
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Replace console output in Python
I'm wondering how I could create one of those nifty console counters in Python as in certain C/C++-programs.
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How do I encode/decode HTML entities in Ruby?
I am trying to decode some HTML entities, such as '<' becoming '<' .
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