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How to deep copy a list?
...s not a deep copy. You don't make a deep copy using list() (Both list(...) and testList[:] are shallow copies).
You use copy.deepcopy(...) for deep copying a list.
deepcopy(x, memo=None, _nil=[])
Deep copy operation on arbitrary Python objects.
See the following snippet -
>>> a = ...
How can I force a long string without any blank to be wrapped?
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It's supported only in IE, Safari, and FF3.1 (alpha).
– Adam Bellaire
Jan 31 '09 at 17:21
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Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
...egory around UIButton to be able to set the background color of the button and set the state. You might find this useful.
@implementation UIButton (ButtonMagic)
- (void)setBackgroundColor:(UIColor *)backgroundColor forState:(UIControlState)state {
[self setBackgroundImage:[UIButton imageFromC...
convert a JavaScript string variable to decimal/money
...n the future, do not use float to store currency. You will loose precision and data. You should store it as a integer number of cents (or pennies etc.) and then convert prior to output.". Source: stackoverflow.com/questions/149055/…
– SSH This
Nov 27 '13 at 1...
MySQL - UPDATE query based on SELECT Query
... This is by far the fastest query. Edit: Having dest with 22K rows, and src with 4K rows, it took under 1 sec to complete, while the top answer over 60 sec.
– Chris Dev
Jun 19 '17 at 15:06
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Remove scrollbar from iframe
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Thanks, but horizontal scroll only and still shows up in Firefox. Doesn't show up in Chrome nor IE. Also, CSS for scrollbar gets applied effectively only in IE, not FF nor Chrome (latter show default looking beige color/shades).
– Faith I...
Getting SyntaxError for print with keyword argument end=' '
...rom __future__ import print_function
The same goes with unicode_literals and some other nice things (with_statement, for example). This won't work in really old versions (i.e. created before the feature was introduced) of Python 2.x, though.
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C compile error: “Variable-sized object may not be initialized”
...printf( "%d", boardAux[1][2] ) compiles fine. The compiler knows the sizes and knows in what position in memory the (1,2)-th element is. If you use dynamic allocation the array is uni-dimensional and you must perform the math yourself: printf("%d", boardAux[ 1*length + 2 ])
– D...
How to sort findAll Doctrine's method?
...own, yes it's possible, although it adds significant fat to the controller and isn't DRY.
You should really define your own query in the entity repository, it's simple and best practice.
use Doctrine\ORM\EntityRepository;
class UserRepository extends EntityRepository
{
public function findAll...
What's the use of do while(0) when we define a macro? [duplicate]
I'm reading the linux kernel and I found many macros like this:
2 Answers
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