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Django admin: how to sort by one of the custom list_display fields that has no database field
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charleschenster
23233 silver badges88 bronze badges
answered Sep 16 '11 at 18:00
bbrikbbrik
2,4...
How can you do anything useful without mutable state?
I've been reading a lot of stuff about functional programming lately, and I can understand most of it, but the one thing I just can't wrap my head around is stateless coding. It seems to me that simplifying programming by removing mutable state is like "simplifying" a car by removing the dashboard:...
Why not infer template parameter from constructor?
my question today is pretty simple: why can't the compiler infer template parameters from class constructors, much as it can do from function parameters? For example, why couldn't the following code be valid:
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How to wait 5 seconds with jQuery?
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Use a normal javascript timer:
$(function(){
function show_popup(){
$("#message").slideUp();
};
window.setTimeout( show_popup, 5000 ); // 5 seconds
});
This will wait 5 seconds after the DOM is ready. If you want to wait until the page is actually loaded you need to u...
Cost of exception handlers in Python
...000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 47.7169 7.36433 48.0099 7.26993C48.9099 6.97997 49.672 6.73443 49.672 5.93063C49.672 5.22043 48.9832 4.61182 48.1414 4.61182C47.4335 4.61182 46.7256 4.91628 46.0943 5.50789C45.7307 4.9328 4...
Can pandas automatically recognize dates?
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answered Jul 4 '13 at 10:32
Rutger KassiesRutger Kassies
41.9k1111 gold badges9090 silver badges9090 bronze badges
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How do I do an OR filter in a Django query?
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answered Apr 11 '09 at 9:32
Alex KoshelevAlex Koshelev
13.4k22 gold badges3232 silver badges2828 bronze badges
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How does comparison operator works with null int?
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nkvunkvu
4,71322 gold badges1313 silver badges1212 bronze badges
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C++ performance vs. Java/C#
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See shootout.alioth.debian.org/u32/… for examples of this theory not happening.
– Justicle
Sep 18 '11 at 20:27
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How do I clear/delete the current line in terminal?
... Cut word before the cursor
Ctrl+y Paste the last deleted command
Ctrl+_ Undo
Ctrl+u Cut everything before the cursor
Ctrl+xx Toggle between first and current position
Ctrl+l Clear the terminal
Ctrl+c Cancel the command
Ctrl+r Search command in history - type the search term
Ctrl+j End...