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UIButton: how to center an image and a text using imageEdgeInsets and titleEdgeInsets?
...ersions below:
// the space between the image and text
CGFloat spacing = 6.0;
// lower the text and push it left so it appears centered
// below the image
CGSize imageSize = button.imageView.frame.size;
button.titleEdgeInsets = UIEdgeInsetsMake(
0.0, - imageSize.width, - (imageSize.height + spa...
What's the difference between '$(this)' and 'this'?
...f you want jQuery's help to do DOM things just keep this in mind.
$(this)[0] === this
Basically every time you get a set of elements back jQuery turns it into a jQuery object. If you know you only have one result, it's going to be in the first element.
$("#myDiv")[0] === document.getElementById(...
Using 'starts with' selector on individual class names
...
answered Feb 1 '10 at 17:01
Josh StodolaJosh Stodola
76.3k4242 gold badges177177 silver badges220220 bronze badges
...
jQuery: Get selected element tag name
...
1048
You can call .prop("tagName"). Examples:
jQuery("<a>").prop("tagName"); //==> "A"
jQ...
PHP validation/regex for URL
...
nhahtdh
51.7k1313 gold badges110110 silver badges146146 bronze badges
answered Oct 15 '08 at 19:30
OwenOwen
7...
Converting int to bytes in Python 3
...s on an iterable instead of a single integer:
>>> bytes([3])
b'\x03'
The docs state this, as well as the docstring for bytes:
>>> help(bytes)
...
bytes(int) -> bytes object of size given by the parameter initialized with null bytes
...
Arrays, heap and stack and value types
In the above code, is new int[100] generating the array on the heap? From what I've read on CLR via c#, the answer is yes. But what I can't understand, is what happens to the actual int's inside the array. As they are value types, I'd guess they'd have to be boxed, as I can, for example, pass myInte...
Is errno thread-safe?
...
180
Yes, it is thread safe. On Linux, the global errno variable is thread-specific. POSIX requires...
Programmatically retrieve memory usage on iPhone
...;
NSLog(@"Memory in use (in MiB): %f", ((CGFloat)info.resident_size / 1048576));
} else {
NSLog(@"Error with task_info(): %s", mach_error_string(kerr));
}
}
There is also a field in the structure info.virtual_size which will give you the number of bytes available virtual memory (or mem...
Cutting the videos based on start and end time using ffmpeg
...ing an edit list. In other words, if the closest keyframe before 3s is at 0s then it will copy the video starting at 0s and use an edit list to tell the player to start playing 3 seconds in.
If you are using the latest ffmpeg from git master it will do this using an edit list when invoked using th...