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How to check if object (variable) is defined in R?
I'd like to check if some variable is defined in R - without getting an error. How can I do this?
6 Answers
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Saving an Object (Data persistence)
I've created an object like this:
4 Answers
4
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Deploy a project using Git push
Is it possible to deploy a website using git push ? I have a hunch it has something to do with using git hooks to perform a git reset --hard on the server side, but how would I go about accomplishing this?
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Random string generation with upper case letters and digits
I want to generate a string of size N.
31 Answers
31
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How to delete duplicates on a MySQL table?
I need to DELETE duplicated rows for specified sid on a MySQL table.
25 Answers
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Switch statement: must default be the last case?
Consider the following switch statement:
10 Answers
10
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SSH Private Key Permissions using Git GUI or ssh-keygen are too open
Recently I've been unable to clone or push to github, and I'm trying to find the root cause.
25 Answers
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How do I mock an open used in a with statement (using the Mock framework in Python)?
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8 Answers
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What is the use of “ref” for reference-type variables in C#?
I understand that if I pass a value-type ( int , struct , etc.) as a parameter (without the ref keyword), a copy of that variable is passed to the method, but if I use the ref keyword a reference to that variable is passed, not a new one.
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“:” (colon) in C struct - what does it mean? [duplicate]
What does :1 and :8 mean?
3 Answers
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