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Warning :-Presenting view controllers on detached view controllers is discouraged
... @keyurbhalodiya You need to call the dismissViewController method from the modalView to make it work. So if you displayed a view named viewB from a viewA with [viewA.window.rootViewController presentViewController:viewB], in viewB you need to add a button for example, associated to a custom...
What is the fastest way to compare two sets in Java?
...a boolean, not another Set. The elements in secondSet are actually removed from firstSet and true is returned if a change has been made.
– Richard Corfield
Oct 21 '12 at 20:30
4
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Which is better in python, del or delattr?
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The dis module. You can run it from the command line using python -m dis and typing in some code, or disassemble a function with dis.dis().
– Miles
Jul 13 '09 at 18:04
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Back to previous page with header( “Location: ” ); in PHP
... in production when I had to get something done for a demo. As you can see from my answer, I provide three other solutions I would turn to instead of the redirection based on HTTP_REFERER.
– Dimitry
Mar 13 '11 at 16:00
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Overwriting my local branch with remote branch [duplicate]
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git reset --hard origin/branch
be careful, this will remove any changes from your working tree!
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Check time difference in Javascript
How would you check time difference from two text-boxes in Javascript?
17 Answers
17
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What would cause an algorithm to have O(log n) complexity?
...e you see an O(log n) algorithm... where on earth does that logarithm come from? However, it turns out that there's several different ways that you can get a log term to show up in big-O notation. Here are a few:
Repeatedly dividing by a constant
Take any number n; say, 16. How many times can y...
Concatenate two slices in Go
...ction, and the ... lets you pass multiple arguments to a variadic function from a slice.
– user1106925
Apr 27 '13 at 4:14
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When should one use RxJava Observable and when simple Callback on Android?
...e<Photo> call(List<Photo> photos) {
return Observable.from(photos);
}
})
.filter(new Func1<Photo, Boolean>() {
@Override
public Boolean call(Photo photo) {
return photo.isPNG();
}
})
.subscribe(
new Action1<Photo>() {
@Override
...
What does the question mark and the colon (?: ternary operator) mean in objective-c?
... [NSString stringWithFormat: @"Status: %@", statusString] This saves you from having to use and release local variables in if-else patterns. FTW!
– Bruno Bronosky
May 6 '10 at 15:52
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