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New Array from Index Range Swift
How can I do something like this? Take the first n elements from an array:
5 Answers
5...
How to turn NaN from parseInt into 0 for an empty string?
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Yes, very handy for reading from localStorage: Number(localStorage.getItem('appBanner.count')) + 1
– Philip Murphy
Jan 24 '19 at 11:59
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Creating a UIImage from a UIColor to use as a background image for UIButton [duplicate]
...rState:(UIControlState)state {
[self setBackgroundImage:[UIButton imageFromColor:backgroundColor] forState:state];
}
+ (UIImage *)imageFromColor:(UIColor *)color {
CGRect rect = CGRectMake(0, 0, 1, 1);
UIGraphicsBeginImageContext(rect.size);
CGContextRef context = UIGraphicsGetCurre...
Bomb dropping algorithm
...hat there is no point bombing layer 1, because the
"blast radius" you get from doing so is always contained within the blast radius of
another square from layer 2. You should be able to easily convince yourself of this.
So, we can reduce the problem to finding an optimal way to bomb away the per...
Why does Math.Round(2.5) return 2 instead of 3?
...earest,
or banker's rounding. It minimizes
rounding errors that result from
consistently rounding a midpoint value
in a single direction.
You can specify how Math.Round should round mid-points using an overload which takes a MidpointRounding value. There's one overload with a MidpointRound...
Remote JMX connection
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I've spend more than a day trying to make JMX to work from outside localhost. It seems that SUN/Oracle failed to provide a good documentation on this.
Be sure that the following command returns you a real IP or HOSTNAME. If it does return something like 127.0.0.1, 127.0.1.1 or ...
Java - get pixel array from image
I'm looking for the fastest way to get pixel data (int the form int[][] ) from a BufferedImage . My goal is to be able to address pixel (x, y) from the image using int[x][y] . All the methods I have found do not do this (most of them return int[] s).
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Capitalize only first character of string and leave others alone? (Rails)
...ave all the others the way they are. I'm running into a problem where "i'm from New York" gets turned into "I'm from new york."
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Redirect STDERR / STDOUT of a process AFTER it's been started, using command line?
...onfigured as "x86_64-linux-gnu".
Attaching to process 5636
Reading symbols from /usr/bin/tail...(no debugging symbols found)...done.
Reading symbols from /lib/librt.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/librt.so.1
Reading symbols from /lib/libc.so.6...(no debugging symb...
Accessing class variables from a list comprehension in the class definition
How do you access other class variables from a list comprehension within the class definition? The following works in Python 2 but fails in Python 3:
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