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Open a file with su/sudo inside Emacs
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My point was really that you pay the cost for the first opened file, and not for any of the others.
– EfForEffort
Jun 13 '13 at 15:02
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Watermark / hint text / placeholder TextBox
How can I put some text into a TextBox which is removed automatically when user types something in it?
33 Answers
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Why .NET String is immutable? [duplicate]
As we all know, String is immutable. What are the reasons for String being immutable and the introduction of StringBuilder class as mutable?
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Distinct() with lambda?
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IEnumerable<Customer> filteredList = originalList
.GroupBy(customer => customer.CustomerId)
.Select(group => group.First());
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How to change the background color of a UIButton while it's highlighted?
...EndImageContext()
return image
}
func setBackgroundColor(_ color: UIColor, for state: UIControlState) {
self.setBackgroundImage(imageWithColor(color: color), for: state)
}
}
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How can I extract all values from a dictionary in Python?
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If you want all of the values, use this:
dict_name_goes_here.values()
If you want all of the keys, use this:
dict_name_goes_here.keys()
IF you want all of the items (both keys and values), I would use this:
dict_name_goes_here.ite...
How do I create a readable diff of two spreadsheets using git diff?
...e a lot of spreadsheets (xls) in our source code repository. These are usually edited with gnumeric or openoffice.org, and are mostly used to populate databases for unit testing with dbUnit . There are no easy ways of doing diffs on xls files that I know of, and this makes merging extremely tedio...
Cast to int vs floor
...dited Dec 30 '14 at 21:44
Matt Ball
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answered Jul 21 '10 at 14:39
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How do I concatenate two arrays in C#?
...ays. It seems the only functional purpose for using arrays is for Interop calls (Unmanaged C++).
– Levi Fuller
Oct 26 '15 at 22:40
1
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Generate a random point within a circle (uniformly)
...triangle ABC, where |AB|=|BC|? Let's make this easier by extending to a parallelogram ABCD. It's easy to generate points uniformly in ABCD. We uniformly pick a random point X on AB and Y on BC and choose Z such that XBYZ is a parallelogram. To get a uniformly chosen point in the original triangle we...