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Regular expression for matching HH:MM time format
I want a regexp for matching time in HH:MM format. Here's what I have, and it works:
19 Answers
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Outline effect to text
Are there any ways in CSS to give outlines to text with different colors ? I want to highlight some parts of my text to make it more intuitive - like the names, links, etc. Changing the link colors etc. are common nowadays, so I want something new.
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Cannot ping AWS EC2 instance
I have an EC2 instance running in AWS. When I try to ping from my local box it is not available.
25 Answers
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Selecting pandas column by location
I'm simply trying to access named pandas columns by an integer.
5 Answers
5
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Add column with constant value to pandas dataframe [duplicate]
Given a DataFrame:
4 Answers
4
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How to format a number as percentage in R?
One of the things that used to perplex me as a newby to R was how to format a number as a percentage for printing.
10 Answe...
Finding current executable's path without /proc/self/exe
It seems to me that Linux has it easy with /proc/self/exe. But I'd like to know if there is a convenient way to find the current application's directory in C/C++ with cross-platform interfaces. I've seen some projects mucking around with argv[0], but it doesn't seem entirely reliable.
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Is object empty? [duplicate]
What is the fastest way to check if an object is empty or not?
23 Answers
23
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Determine font color based on background color
Given a system (a website for instance) that lets a user customize the background color for some section but not the font color (to keep number of options to a minimum), is there a way to programmatically determine if a "light" or "dark" font color is necessary?
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Best Practice: Software Versioning [closed]
Is there any guideline or standard best practice how to version a software you develop in your spare time for fun, but nevertheless will be used by some people? I think it's necessary to version such software so that you know about with version one is talking about (e.g. for bug fixing, support, and...