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List comprehension vs map
... {x:x**2 for x in rangeNeg5}
)
Efficiency comparison for python3
map is now lazy:
% python3 -mtimeit -s 'xs=range(1000)' 'f=lambda x:x' 'z=map(f,xs)'
1000000 loops, best of 3: 0.336 usec per loop ^^^^^^^^^
Therefore if you will not be using all your data, or do not know ahead of tim...
Convert array of strings into a string in Java
...as:
new String("Harry, Ron, Hermione");
ETA: Java 8 has similar support now:
String.join(", ", "Harry", "Ron", "Hermione");
Can't see support for skipping null values, but that's easily worked around.
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What does 'super' do in Python?
... to super and the correct method arguments right can be difficult. If you know you're using super correctly with single inheritance, that makes debugging less difficult going forward.
Dependency Injection
Other people can use your code and inject parents into the method resolution:
class SomeBase...
How do I check if string contains substring? [duplicate]
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Good to know alternatives but using indexOf is faster. stackoverflow.com/questions/354110/…
– Blowsie
Feb 2 '12 at 15:55
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vs.
...al URLS, not sure if the other examples work with dataURLS (please let me know if the other examples work with dataURLS?)
<iframe class="page-icon preview-pane" frameborder="0" height="352" width="396" src="data:application/pdf;base64, ..DATAURLHERE!... "></iframe>
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How to center an iframe horizontally?
...t;
<iframe></iframe>
</div>
It works because it is now inside a block element.
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Detect if value is number in MySQL
...eptions you gave. Thought you meant the character "e". I see what you mean now.
– Urbycoz
Feb 21 '11 at 12:53
Leading ...
How to get JS variable to retain value after page refresh? [duplicate]
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@Ian lol, good catch. I don't know why, but I'm sort of fascinated with window.name
– Dagg Nabbit
Apr 25 '13 at 4:52
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How to use Servlets and Ajax?
...ntType("text/plain"); // Set content type of the response so that jQuery knows what it can expect.
response.setCharacterEncoding("UTF-8"); // You want world domination, huh?
response.getWriter().write(text); // Write response body.
}
Map this servlet on an URL pattern of /someservle...
Programmatically scroll a UIScrollView
... flick. Basically my code works in a way similar to the iPhone photo app. Now, is there a way that I can programmatically do the same thing so that I end up with a slideshow that runs on its own with a click of a button and a configurable pause between each scroll?
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