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Combine two data frames by rows (rbind) when they have different sets of columns
Is it possible to row bind two data frames that don't have the same set of columns? I am hoping to retain the columns that do not match after the bind.
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Why does Enumerable.All return true for an empty sequence? [duplicate]
The code creates an empty collection of string, then tries to determine if all the elements in the collection are "ABC".
If you run it, b will be true.
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How to force GitHub Pages build?
Every GitHub repository can have ( or be ) a GitHub Pages website, that can be built with Jekyll. GitHub builds the site every time you push a new commit.
Is there a way to force the refresh of the Github Pages website without pushing a new commit?
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What does “while True” mean in Python?
While WHAT is True?
15 Answers
15
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Unicode characters in URLs
In 2010, would you serve URLs containing UTF-8 characters in a large web portal?
7 Answers
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Why is it considered a bad practice to omit curly braces? [closed]
Why does everyone tell me writing code like this is a bad practice?
52 Answers
52
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What is a reasonable length limit on person “Name” fields?
I have a simple webform that will allow unauthenticated users to input their information, including name. I gave the name field a limit of 50 characters to coincide with my database table where the field is varchar(50), but then I started to wonder.
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Easy pretty printing of floats in python?
I have a list of floats. If I simply print it, it shows up like this:
18 Answers
18
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What is the difference between syntax and semantics in programming languages?
What is the difference between syntax and semantics in programming languages (like C, C++)?
10 Answers
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Check existence of directory and create if doesn't exist
I often find myself writing R scripts that generate a lot of output. I find it cleaner to put this output into it's own directory(s). What I've written below will check for the existence of a directory and move into it, or create the directory and then move into it. Is there a better way to approach...