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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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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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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 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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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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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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How can I access and process nested objects, arrays or JSON?
...ted data structure containing objects and arrays. How can I extract the information, i.e. access a specific or multiple values (or keys)?
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Does Python support short-circuiting?
Does Python support short-circuiting in boolean expressions?
3 Answers
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Logic to test that 3 of 4 are True
...s to be true, it seems natural to me that the value 3 appears somewhere.
For instance, in C++:
if ((int)a + (int)b + (int)c + (int)d == 3)
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This is well defined in C++: the standard (§4.7/4) indicates that converting bool to int gives the expected values 0 or 1.
In Java and C#, you can ...
Convert camelCaseText to Sentence Case Text
How can I convert a string either like 'helloThere' or 'HelloThere' to 'Hello There' in JavaScript?
20 Answers
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