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What's the function like sum() but for multiplication? product()?
...gested, it is not hard to make your own using reduce() and operator.mul():
from functools import reduce # Required in Python 3
import operator
def prod(iterable):
return reduce(operator.mul, iterable, 1)
>>> prod(range(1, 5))
24
Note, in Python 3, the reduce() function was moved to t...
What is the _references.js used for?
...
In VS 11, Visual Studio will give you intellisense from all files
that have references in the “_references.js” file.
For More Info
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Is right click a Javascript event?
...themselves, browsers set a property to the event object that is accessible from the event handling function:
document.body.onclick = function (e) {
var isRightMB;
e = e || window.event;
if ("which" in e) // Gecko (Firefox), WebKit (Safari/Chrome) & Opera
isRightMB = e.whic...
How to convert NSDate into unix timestamp iphone sdk?
... @Esko918 Well of course. The Unix time describes the number of seconds from 1970 till the point in time you want to specify ("now" in this case). If you change the time on your iPad, you effectively change "now" to some other time and hence the difference in the time stamps.
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What does git push origin HEAD mean?
...AD points to the top of the current branch. git can obtain the branch name from that. So it's the same as:
git push origin CURRENT_BRANCH_NAME
but you don't have to remember/type the current branch name. Also it prevents you from pushing to the wrong remote branch by accident.
If you want to pus...
Java associative-array
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I think I like this method better thanks. Coming from php where everything is so simple is sort of awkward using java, but great solution. Thanks.
– frostymarvelous
Jan 25 '12 at 12:58
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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...is called by the exit() ANSI C function, and indirectly when you do return from main.
the process that called the exiting child process (Bash), often with fork + exec, can retrieve the exit status of the child with the wait system call
Consider the Bash code:
$ false
$ echo $?
1
The C "equivalen...
How to detect that animation has ended on UITableView beginUpdates/endUpdates?
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A possible solution could be to inherit from the UITableView on which you call endUpdates and overwrite its setContentSizeMethod, since UITableView adjusts its content size to match the added or removed rows. This approach should also work for reloadData.
To ensur...
Extract only right most n letters from a string
...can I extract a substring which is composed of the rightmost six letters from another string ?
21 Answers
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How to know/change current directory in Python shell?
...dit
Under Windows:
set PYTHONPATH=%PYTHONPATH%;C:\My_python_lib
(taken from http://docs.python.org/using/windows.html)
edit 2
... and even better: use virtualenv and virtualenv_wrapper, this will allow you to create a development environment where you can add module paths as you like (add2virt...