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Saving enum from select in Rails 4.1
...;/option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select :color, Wine.colors.keys.to_a
If you want to have clean human-readable attributes you can also do:
f.select :color, Wine.colors.keys.map { |w| [w...
Timing a command's execution in PowerShell
...turn the average, minimum and maximum time taken. You can add -Silent to swallow STDOUT.
– joshuapoehls
Mar 26 '12 at 18:11
13
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Cross-platform way of getting temp directory in Python
...d() # reads data back from the file
f.close() # temporary file is automatically deleted here
For completeness, here's how it searches for the temporary directory, according to the documentation:
The directory named by the TMPDIR environment variable.
The directory named by the TEMP environment v...
How to get the build/version number of your Android application?
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@Felix you can't call getPackageManager() outside of context, so getApplicationContext() (or passed context) might be needed.
– Sver
Sep 24 '12 at 7:06
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Are Javascript arrays sparse?
...ript arrays are implemented differs from browser to browser, but they generally fall back to a sparse implementation - most likely the same one used for property access of regular objects - if using an actual array would be inefficient.
You'll have to ask someone with more knowledge about specific ...
Best practices for catching and re-throwing .NET exceptions
... that bombs here
} catch (Exception ex)
{
throw;
}
throw ex; is basically like throwing an exception from that point, so the stack trace would only go to where you are issuing the throw ex; statement.
Mike is also correct, assuming the exception allows you to pass an exception (which is recom...
Declaring a custom android UI element using XML
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The Android Developer Guide has a section called Building Custom Components. Unfortunately, the discussion of XML attributes only covers declaring the control inside the layout file and not actually handling the values inside the class initialisation. The steps are as...
Autoincrement VersionCode with gradle extra properties
...se build", that should be possible, though I don't know the details. Personally, since there are ~2 billion version codes available, I'm assuming I won't run out. :-)
– CommonsWare
Feb 27 '14 at 20:47
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Test whether a list contains a specific value in Clojure
...ex 0!).
To add to the confusion, in cases where it doesn't make sense to call contains?, it simply return false; this is what happens in (contains? :foo 1) and also (contains? '(100 101 102) 101). Update: In Clojure ≥ 1.5 contains? throws when handed an object of a type that doesn't support the i...
What is the difference between currying and partial application?
...ints that other peoples examples of currying are not currying, but are actually just partial application.
14 Answers
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