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What are the “standard unambiguous date” formats for string-to-date conversion in R?
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This is documented behavior. From ?as.Date:
format: A character string. If not specified, it will try
'"%Y-%m-%d"' then '"%Y/%m/%d"' on the first non-'NA' element,
and give an error if neither work...
How can I use a C++ library from node.js?
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Look at node-ffi.
node-ffi is a Node.js addon for loading and calling dynamic libraries using pure JavaScript. It can be used to create bindings to native libraries without writing any C++ code.
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Polymorphism: Why use “List list = new ArrayList” instead of “ArrayList list = new ArrayList”? [dupl
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The main reason you'd do this is to decouple your code from a specific implementation of the interface. When you write your code like this:
List list = new ArrayList();
the rest of your code only knows that data is of type List, which is preferabl...
Check substring exists in a string in C
...strstr returns a pointer to the start of the word in sent if the word word is found.
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HTTP authentication logout via PHP
What is the correct way to log out of HTTP authentication protected folder?
18 Answers
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urlencode vs rawurlencode?
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It will depend on your purpose. If interoperability with other systems is important then it seems rawurlencode is the way to go. The one exception is legacy systems which expect the query string to follow form-encoding style of spaces encoded as + instead of %20 (in which case you need urlencode...
In Python, using argparse, allow only positive integers
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This should be possible utilizing type. You'll still need to define an actual method that decides this for you:
def check_positive(value):
ivalue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError...
ISO time (ISO 8601) in Python
.... In Python, I would like to take its creation time, and convert it to an ISO time (ISO 8601) string while preserving the fact that it was created in the Eastern Time Zone (ET) .
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Difference between abstract class and interface in Python
What is the difference between abstract class and interface in Python?
8 Answers
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Compare if BigDecimal is greater than zero
How can I compare if BigDecimal value is greater than zero?
6 Answers
6
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