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Efficient list of unique strings C#
What is the most efficient way to store a list of strings ignoring any duplicates?
I was thinking a dictionary may be best inserting strings by writing dict[str] = false; and enumerating through the keys as a list. Is that a good solution?
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Detect backspace in empty UITextField
Is there any way to detect when the Backspace / Delete key is pressed in the iPhone keyboard on a UITextField that is empty? I want to know when Backspace is pressed only if the UITextField is empty.
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How to stop Visual Studio from opening a file on single click?
In my Visual Studio 2012 Solution Explorer, when I single click a filename it opens it. This was different from Visual Studio 2010 (required a double click). Is there a way to make double-click the 'view file' command?
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Where do gems install?
I'm trying to edit one of the gem's config files and I can't find it. I'm not sure how I did this in the past.
4 Answers
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Datatable vs Dataset
I currently use a DataTable to get results from a database which I can use in my code.
7 Answers
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Use of ~ (tilde) in R programming Language
I saw in a tutorial about regression modeling the following command :
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How to preserve line breaks when storing a command output to a variable in bash?
I’m using bash shell on Linux. I have this simple script …
2 Answers
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How to save a data.frame in R?
I made a data.frame in R that is not very big, but it takes quite some time to build. I would to save it as a file, which I can than again open in R?
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Is there a literal notation for an array of symbols?
I like this literal expression for an array of strings:
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Does R have an assert statement as in python?
a statement that checks if something is true and if not prints a given error message and exits
3 Answers
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