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Get all keys of an NSDictionary as an NSArray
...s and values, here's what you do:
for (NSString *key in dictionary) {
id value = dictionary[key];
NSLog(@"Value: %@ for key: %@", value, key);
}
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How can I shuffle the lines of a text file on the Unix command line or in a shell script?
...f should be seen as completely different. sort -R is deterministic. If you call it twice at different times on the same input you will get the same answer. shuf, on the other hand, produces randomized output, so it will most likely give different output on the same input.
– EfF...
How do I make a dotted/dashed line in Android?
I'm trying to make a dotted line. I'm using this right now for a solid line:
19 Answers
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The easiest way to transform collection to array?
...ll behave itself in most situations, but if an item is deleted between the call to x.size() and x.toArray(), the resulting array will contain an extra null element at the end. The new Foo[0] variant proposed by Carlos does not suffer this problem.
– Jules
Nov ...
A Windows equivalent of the Unix tail command [closed]
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@Alphaaa: I suspect it has to do with the OS calls that GNU Utilities uses. See stackoverflow.com/a/4003487/141172
– Eric J.
Apr 24 '13 at 0:27
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Naming conventions for java methods that return boolean(No question mark)
...s a much better name, and conveys what the method will tell you when it is called. Following a pattern like this can also help keep more of your functions pure and without side effects.
If you do a Google Search for isEmpty() in the Java API, you get lots of results.
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How to set the margin or padding as percentage of height of parent container?
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The fix is that yes, vertical padding and margin are relative to width, but top and bottom aren't.
So just place a div inside another, and in the inner div, use something like top:50% (remember position matters if it still doesn't work)
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Does the 'mutable' keyword have any purpose other than allowing the variable to be modified by a con
...strained to:
only read access for any visible data members
permission to call only methods that are marked as const.
The mutable exception makes it so you can now write or set data members that are marked mutable. That's the only externally visible difference.
Internally those const methods th...
Drop shadow for PNG image in CSS
...25px rgba(0,0,0,0.5));
filter: url(#drop-shadow);
-ms-filter: "progid:DXImageTransform.Microsoft.Dropshadow(OffX=12, OffY=12, Color='#444')";
filter: "progid:DXImageTransform.Microsoft.Dropshadow(OffX=12, OffY=12, Color='#444')";
}
<!-- HTML elements here -->
<svg height="0" ...
HttpClient.GetAsync(…) never returns when using await/async
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edited Feb 21 at 21:43
Callum Watkins
2,22222 gold badges2323 silver badges4040 bronze badges
answered Apr 27 '12 at 13:20
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