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How to shrink the .git folder
...ally lead to huge .git folders (remember, git stores snapshots for each revision and binary files compress badly)
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Check number of arguments passed to a Bash script
...ke my Bash script to print an error message if the required argument count is not met.
10 Answers
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Difference between map, applymap and apply methods in Pandas
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Straight from Wes McKinney's Python for Data Analysis book, pg. 132 (I highly recommended this book):
Another frequent operation is applying a function on 1D arrays to each column or row. DataFrame’s apply method does exactly this:
In [116]: frame = DataFrame(np.rando...
Last non-empty cell in a column
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This works with both text and numbers and doesn't care if there are blank cells, i.e., it will return the last non-blank cell.
It needs to be array-entered, meaning that you press Ctrl-Shift-Enter after you type or paste it in...
What is the difference between the HashMap and Map objects in Java?
What is the difference between the following maps I create (in another question, people answered using them seemingly interchangeably and I'm wondering if/how they are different):
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What is the worst gotcha in C# or .NET? [closed]
... was recently working with a DateTime object, and wrote something like this:
61 Answers
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When monkey patching an instance method, can you call the overridden method from the new implementat
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EDIT: It has been 9 years since I originally wrote this answer, and it deserves some cosmetic surgery to keep it current.
You can see the last version before the edit here.
You can’t call the overwritten method by name or keyword. That’s one of the many reasons why monk...
Update all objects in a collection using LINQ
Is there a way to do the following using LINQ?
16 Answers
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What is
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super in Generics is the opposite of extends. Instead of saying the comparable's generic type has to be a subclass of T, it is saying it has to be a superclass of T. The distinction is important because extends tells you what you can get out o...
typeof for RegExp
Is there anyway to detect if a JavaScript object is a regex?
8 Answers
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