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Getting user input [duplicate]
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Use the raw_input() function to get input from users (2.x):
print "Enter a file name:",
filename = raw_input()
or just:
filename = raw_input('Enter a file name: ')
or if in Python 3.x:
filename = input('Enter a file name: ')
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How can I implode an array while skipping empty array items?
...al circumstances -- otherwise you wouldn't be able to distinguish the glue from the actual data in the array):
$array = array('one', '', '', 'four', '', 'six');
$str = implode('-', $array);
$str = preg_replace ('/(-)+/', '\1', $str);
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Wait 5 seconds before executing next line
...woefully inadequate. What if you need to sleep for 500ms before returning from the function, for instance to simulate a slow async http request?
– A.Grandt
Sep 22 '16 at 9:17
17
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Canary release strategy vs. Blue/Green
... environment is created. Once the new
environment is tested, it takes over from the old version. The old
environment can then be turned off.
A/B Testing - Two versions of an application are running at the same time. A portion of requests go to each. Developers can then compare the versions.
C...
Is 'switch' faster than 'if'?
... I'm not sure which.
EDIT 2014: There has been some discussion elsewhere from people familiar with the LLVM optimizer saying that the jump table optimization can be important in many scenarios; e.g. in cases where there is an enumeration with many values and many cases against values in said enume...
How can I read and parse CSV files in C++?
...Library (StrTk) has a token grid class that allows you to load data either from text files, strings or char buffers, and to parse/process them in a row-column fashion.
You can specify the row delimiters and column delimiters or just use the defaults.
void foo()
{
std::string data = "1,2,3,4,5\n...
How do I move a single folder from one Subversion repository to another repository?
...
svndumpfilter has a serious flaw - if a file or path was copied from a path you're filtering out to one you're filtering in, svndumpfilter won't be able to fill out the history and the job will fail.
You can use svndumpfilter2 if you experience this problem.
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iOS: UIButton resize according to text length
...d this view to be vertically centered and extend to a max entent of 10 pts from the superview's edge; or even,
I want this button/label to resize according to the label it is displaying!
Here is a simple tutorial to get introduced to auto-layouting.
For a more details.
It takes some time at fir...
Named Branches vs Multiple Repositories
...nes there will be no permanent record of where a particular changeset came from.
This means that clones are great for quick experiments where you don't want to record a branch name, and named branches are good for long term branches ("1.x", "2.x" and similar).
Note also that a single repository ca...
Are members of a C++ struct initialized to 0 by default?
...ialized to zero - see stackoverflow.com/questions/60653/… for a citation from the standard. Whether this is good style is another matter.
– bdonlan
Jul 1 '09 at 16:13
add a ...