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Difference between dispatch_async and dispatch_sync on serial queue?
...rialQueue, ^{ printf("3"); });
printf("4");
It may print 2413 or 2143 or 1234 but 1 always before 3
for this code
dispatch_sync(_serialQueue, ^{ printf("1"); });
printf("2");
dispatch_sync(_serialQueue, ^{ printf("3"); });
printf("4");
it always print 1234
Note: For first code, it won't pri...
How to implement a confirmation (yes/no) DialogPreference?
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answered Sep 12 '12 at 22:37
PravinDodiaPravinDodia
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A Better Django Admin ManyToMany Field Widget
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BlairBlair
12.8k77 gold badges4242 silver badges5454 bronze badges
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Xcode 4 - detach the console/log window
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125
Go to Xcode preferences, and open the Behavior tab.
Tell Xcode to open a tab called "Debugger...
Creating a zero-filled pandas data frame
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ShravanShravan
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2
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Placing an image to the top right corner - CSS
...ition: absolute;
right: 0;
top: 0;
display: block;
height: 125px;
width: 125px;
background: url(TRbanner.gif) no-repeat;
text-indent: -999em;
text-decoration: none;
}
</style>
<a id="topright" href="#" title="TopRight">Top Right Link Text</a>
The ...
How to convert BigDecimal to Double in Java?
...66231 44.6595 4.66231C43.6264 4.66231 43.1481 5.28821 43.1481 6.59048V11.9512C43.1481 13.2535 43.6264 13.8962 44.6595 13.8962C45.6924 13.8962 46.1709 13.2535 46.1709 11.9512V9.17788Z\"/\u003e\u003cpath d=\"M32.492 10.1419C32.492 12.6954 34.1182 14.0484 37.0451 14.0484C39.9723 14.0484 41.5985 12.6954...
How to read keyboard-input?
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127
try
raw_input('Enter your input:') # If you use Python 2
input('Enter your input:') # ...
Can you call Directory.GetFiles() with multiple filters?
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edited May 23 '17 at 12:02
Community♦
111 silver badge
answered Oct 2 '08 at 16:09
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Functional design patterns [closed]
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answered Jul 9 '12 at 11:20
Edmondo1984Edmondo1984
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