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In Functional Programming, what is a functor?
...tor' a few times while reading various articles on functional programming, but the authors typically assume the reader already understands the term. Looking around on the web has provided either excessively technical descriptions (see the Wikipedia article ) or incredibly vague descriptions (see th...
curl POST format for CURLOPT_POSTFIELDS
...se you are sending a string, urlencode() it. Otherwise if array, it should be key=>value paired and the Content-type header is automatically set to multipart/form-data.
Also, you don't have to create extra functions to build the query for your arrays, you already have that:
$query = http_build_...
How to pass objects to functions in C++?
I am new to C++ programming, but I have experience in Java. I need guidance on how to pass objects to functions in C++.
7 A...
INNER JOIN vs LEFT JOIN performance in SQL Server
I've created SQL command that uses INNER JOIN on 9 tables, anyway this command takes a very long time (more than five minutes). So my folk suggested me to change INNER JOIN to LEFT JOIN because the performance of LEFT JOIN is better, despite what I know. After I changed it, the speed of query got si...
How to wait for several Futures?
...comprehension, we wait until the results 1 and then 2 and then 3 are available. If either 1 or 2 fails, we will not wait for 3 anymore. If all 3 succeed, then the aggFut val will hold a tuple with 3 slots, corresponding to the results of the 3 futures.
Now if you need the behavior where you wan...
In Ruby on Rails, how do I format a date with the “th” suffix, as in, “Sun Oct 5th”?
... format: short day of week, short month, day of month without leading zero but including "th", "st", "nd", or "rd" suffix.
...
Regular Expressions: Is there an AND operator?
Obviously, you can use the | (pipe?) to represent OR , but is there a way to represent AND as well?
12 Answers
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Python's “in” set operator
I'm a little confused about the python in operator for sets.
5 Answers
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What do *args and **kwargs mean? [duplicate]
... function definition’s argument list allows that function to accept an arbitrary number of arguments and/or keyword arguments.
For example, if you wanted to write a function that returned the sum of all its arguments, no matter how many you supply, you could write it like this:
def my_sum(*args)...
Batch File; List files in directory, only filenames?
This is probably a very simple question, but I'm having trouble with it. Basically, I am trying to write a Batch File and I need it to list all the files in a certain directory. The dir command will do this, but it also gives a bunch of other information; I want it to list ONLY the file names an...