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How to use R's ellipsis feature when writing your own function?
...luated expression".
When you call my_ellipsis_function(a=1:10,b=11:20,c=21:30) then ... "creates" a list of arguments: list(a=1:10,b=11:20,c=21:30) and substitute make it a list of four elements:
List of 4
$ : symbol list
$ a: language 1:10
$ b: language 11:20
$ c: language 21:30
First element d...
Rename MySQL database [duplicate]
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edited May 23 '17 at 12:10
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answered Aug 30 '12 at 4:59
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Is there a JavaScript strcmp()?
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136
What about
str1.localeCompare(str2)
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Reverse / invert a dictionary mapping
...Python 2.7.x
inv_map = {v: k for k, v in my_map.iteritems()}
For Python 3+:
inv_map = {v: k for k, v in my_map.items()}
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Understanding recursion [closed]
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603
How do you empty a vase containing five flowers?
Answer: if the vase is not empty, you take out...
Convert Month Number to Month Name Function in SQL
I have months stored in SQL Server as 1,2,3,4,...12. I would like to display them as January,February etc. Is there a function in SQL Server like MonthName(1) = January? I am trying to avoid a CASE statement, if possible.
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What is the fastest integer division supporting division by zero no matter what the result is?
... movl %eax, %ecx
popl %ebp
movl %edx, %eax
sarl $31, %edx
idivl %ecx
ret
As this turned out to be such a popular question and answer, I'll elaborate a bit more. The above example is based on programming idiom that a compiler recognizes. In the above case a boole...
What is the most “pythonic” way to iterate over a list in chunks?
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Search in all files in a project in Sublime Text 3
...a way to search for a string in all files inside a project in Sublime Text 3? The string is not a method.
5 Answers
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Converting from a string to boolean in Python?
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30 Answers
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