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quick random row selection in Postgres
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answered Mar 14 '11 at 10:45
NPENPE
416k8181 gold badges858858 silver badges949949 bronze badges
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Draw text in OpenGL ES
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103
The Android SDK doesn't come with any easy way to draw text on OpenGL views. Leaving you with ...
how to fire event on file select
...owLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\...
Android: Getting a file URI from a content URI?
...Google engineers.
– user1643723
Jan 10 '17 at 11:38
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show...
Comparing two dataframes and getting the differences
...13-11-24 Orange 8.6 Orange
2013-11-24 Apple 7.6 Green
2013-11-24 Celery 10.2 Green
""")
DF2 = StringIO("""Date Fruit Num Color
2013-11-24 Banana 22.1 Yellow
2013-11-24 Orange 8.6 Orange
2013-11-24 Apple 7.6 Green
2013-11-24 Celery 10.2 Green
2013-11-25 Apple 22.1 Red
2013-11-25 Orang...
Visual Studio 2010 isn't building before a run when there are code changes
...ld the code (if its out of date), and then debug. This was working on VS 2010 also, however today it just start debugging without a build. Say I do a clean on the project, and then hit F5 instead of building it so it can run it throws an error message saying that the exe doesn't exist to run. How do...
How to find controls in a repeater header or footer
...footer example.
– Mike Cole
Jan 28 '10 at 21:45
8
This answer hurts my eyes.
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What is the difference between an expression and a statement in Python?
...which can be any Python object. Examples:
3 + 5
map(lambda x: x*x, range(10))
[a.x for a in some_iterable]
yield 7
Statements (see 1, 2), on the other hand, are everything that can make up a line (or several lines) of Python code. Note that expressions are statements as well. Examples:
# all ...
Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...t♦Kirti Thorat
49k88 gold badges9696 silver badges103103 bronze badges
3
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Manually raising (throwing) an exception in Python
...it makes sense.
– Aaron Hall♦
Nov 10 '17 at 16:03
1
In the example for "Best Practices: except ...