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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...
Convert a list to a dictionary in Python
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b = dict(zip(a[::2], a[1::2]))
If a is large, you will probably want to do something like the following, which doesn't make any temporary lists like the above.
from itertools import izip
i = iter(a)
b = dict(izip(i, i))
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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_...
JSON.stringify output to div in pretty print way
I JSON.stringify a json object by
12 Answers
12
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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.
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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
5
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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)...