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Compiling simple Hello World program on OS X via command line
...ed Nov 1 '10 at 21:42
Martin YorkMartin York
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Run function from the command line
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Frédéric HamidiFrédéric Hamidi
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Search for “does-not-contain” on a DataFrame in pandas
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You can use the invert (~) operator (which acts like a not for boolean data):
new_df = df[~df["col"].str.contains(word)]
, where new_df is the copy returned by RHS.
contains also accepts a regular expression...
If the above throws a ValueError, the reason is likely be...
jQuery append() - return appended elements
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Jeroen
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answered Jan 29 '10 at 1:49
SLaksSLaks
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How to add additional fields to form before submit?
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Suresh AttaSuresh Atta
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How to do constructor chaining in C#
I know that this is supposedly a super simple question, but I've been struggling with the concept for some time now.
8 An...
Xcode source automatic formatting
... formatting in Visual Studio 2008. Specifically, I will use the CTRL + K , D keyboard shortcut to force things back into shape after my sloppy implementation.
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Changing the case of a string in Eclipse
How do I make a lowercase string uppercase using Eclipse? I want to select a string and either uppercase it or lowercase it. Is there a shortcut for doing this?
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Effective way to find any file's Encoding
... most frequent question, and this matter is vague for me and since I don't know much about it.
9 Answers
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How to do exponentiation in clojure?
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classic recursion (watch this, it blows stack)
(defn exp [x n]
(if (zero? n) 1
(* x (exp x (dec n)))))
tail recursion
(defn exp [x n]
(loop [acc 1 n n]
(if (zero? n) acc
(recur (* x acc) (dec n)))))
functional
(defn exp [x n]
(redu...