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What do the numbers in a version typically represent (i.e. v1.9.0.1)?
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In version 1.9.0.1:
1: Major revision (new UI, lots of new features, conceptual change, etc.)
9: Minor revision (maybe a change to a search box, 1 feature added, collection of bug fixes)
0: Bug fix release
1: Build number (if used)—...
How to take column-slices of dataframe in pandas
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Difference between exit(0) and exit(1) in Python
What's the difference between exit(0) and exit(1) in Python?
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Where can I find a NuGet package for upgrading to System.Web.Http v5.0.0.0?
...nclude="System.Web.Http, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, processorArchitecture=MSIL">
<SpecificVersion>False</SpecificVersion>
<HintPath>..\packages\Microsoft.AspNet.WebApi.Core.5.0.0\lib\net45\System.Web.Http.dll</HintPath>
</Refe...
Converting RGB to grayscale/intensity
...nels R, G, and B ought to be applied. These weights are: 0.2989, 0.5870, 0.1140.
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iOS 7 TableView like in Settings App on iPad
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Is it correct to use JavaScript Array.sort() method for shuffling?
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Naming returned columns in Pandas aggregate function? [duplicate]
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This will drop the outermost level from the hierarchical column index:
df = data.groupby(...)...
Why does (1 in [1,0] == True) evaluate to False?
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1 Answer
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How do I find out if first character of a string is a number?
... && c <= '9');
Or the slower regex solutions:
s.substring(0, 1).matches("\\d")
// or the equivalent
s.substring(0, 1).matches("[0-9]")
However, with any of these methods, you must first be sure that the string isn't empty. If it is, charAt(0) and substring(0, 1) will throw a StringIn...