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Regular expression to match DNS hostname or IP Address?
Does anyone have a regular expression handy that will match any legal DNS hostname or IP address?
21 Answers
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Equals(=) vs. LIKE
When using SQL, are there any benefits of using = in a WHERE clause instead of LIKE ?
15 Answers
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How to check if a file exists in Go?
Go's standard library does not have a function solely intended to check if a file exists or not (like Python's os.path.exists ). What is the idiomatic way to do it?
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How to set HTTP header to UTF-8 using PHP which is valid in W3C validator?
I have several PHP pages echoing out various things into HTML pages with the following code.
6 Answers
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Close Window from ViewModel
Im creating a Login using a window control to allow a user to login into a WPF application that I am creating.
17 Answ...
Command-line Unix ASCII-based charting / plotting tool
Is there a good command-line UNIX charting / graphing / plotting tool out there? I'm looking for something that will plot xy points on an ASCII graph.
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Node package ( Grunt ) installed but not available
I'm trying to build a github jquery-ui library using grunt , but after running npm install I still can't run the command according to the readme file . It just gives No command 'grunt' found :
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What exactly does git's “rebase --preserve-merges” do (and why?)
Git's documentation for the rebase command is quite brief:
2 Answers
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GroupBy pandas DataFrame and select most common value
I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination.
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