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How do you match only valid roman numerals with a regular expression?
Thinking about my other problem , i decided I can't even create a regular expression that will match roman numerals (let alone a context-free grammar that will generate them)
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How do I calculate percentiles with python/numpy?
Is there a convenient way to calculate percentiles for a sequence or single-dimensional numpy array?
11 Answers
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How to decide font color in white or black depending on background color?
I want to show some images like this example
22 Answers
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Google Maps API 3 - Custom marker color for default (dot) marker
I've seen lots of other questions similar to this ( here , here and here ), but they all have accepted answers that don't solve my problem. The best solution I have found to the problem is the StyledMarker library, which does let you define custom colours for markers, but I can't get it to use ...
Which one will execute faster, if (flag==0) or if (0==flag)?
Interview question: Which one will execute faster, if (flag==0) or if (0==flag) ? Why?
16 Answers
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How to initialize an array's length in JavaScript?
Most of the tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax.
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Are Javascript arrays sparse?
That is, if I use the current time as an index into the array:
7 Answers
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How are the points in CSS specificity calculated
Researching specificity I stumbled upon this blog - http://www.htmldog.com/guides/cssadvanced/specificity/
7 Answers
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Normalizing mousewheel speed across browsers
For a different question I composed this answer , including this sample code .
10 Answers
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What is Bit Masking?
I am fairly new to C programming, and I encountered bit masking. Can someone explain to me the general concept and function of bit masking? Examples are much appreciated.
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