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Logical Operators, || or OR?
I remember reading a while back in regards to logical operators that in the case of OR , using || was better than or (or vice versa).
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How to round up to the nearest 10 (or 100 or X)?
...ting a function to plot data. I would like to specify a nice round number for the y-axis max that is greater than the max of the dataset.
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Test if number is odd or even
...hat is the simplest most basic way to find out if a number/variable is odd or even in PHP?
Is it something to do with mod?
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Regular expression for floating point numbers
...h floating point numbers. I have written the following regular expression for it:
12 Answers
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How to download Xcode DMG or XIP file?
Where does the Mac App Store download the files to under Lion? I need the DMG file in order to repair something in my system, but how can I access that file?
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Regular expression to match numbers with or without commas and decimals in text
...ne are perfect yet. The problem I have is that the numbers in my text may or may not have decimals and commas. For example:
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What do “branch”, “tag” and “trunk” mean in Subversion repositories?
I've seen these words a lot around Subversion (and I guess general repository) discussions.
I have been using SVN for my projects for the last few years, but I've never grasped the complete concept of these directories.
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Rails find_or_create_by more than one attribute?
There is a handy dynamic attribute in active-record called find_or_create_by:
5 Answers
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What is a plain English explanation of “Big O” notation?
I'd prefer as little formal definition as possible and simple mathematics.
41 Answers
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Checking for empty arrays: count vs empty
...ould use count really - If the array is large then count takes longer/has more overhead. If you simply need to know whether or not the array is empty then use empty.
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