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Adding a parameter to the URL with JavaScript
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32 Answers
32
Active
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Maximum single-sell profit
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288
I love this problem. It's a classic interview question and depending on how you think about i...
Get the key corresponding to the minimum value within a dictionary
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622
Best: min(d, key=d.get) -- no reason to interpose a useless lambda indirection layer or extract...
Bytes of a string in Java
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291
A string is a list of characters (i.e. code points). The number of bytes taken to represent t...
How to sort a list of strings numerically?
...t do anything with the results. What you want is:
list1 = ["1","10","3","22","23","4","2","200"]
list1 = [int(x) for x in list1]
list1.sort()
If for some reason you need to keep strings instead of ints (usually a bad idea, but maybe you need to preserve leading zeros or something), you can use a...
What does `kill -0 $pid` in a shell script do?
... then no signal is sent, but error checking is still performed.
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kill(2)
$ man 2 kill
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If sig is 0, then no signal is sent, but error checking is still performed; this
can be used to check for the existence of a process ID or process group ID.
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When should I use nil and NULL in Objective-C?
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edited Jan 27 '16 at 14:15
community wiki
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How to find the operating system version using JavaScript?
...onsole.log(navigator);
You'll see something like this
# platform = Win32
# appCodeName = Mozilla
# appName = Netscape
# appVersion = 5.0 (Windows; en-US)
# language = en-US
# mimeTypes = [object MimeTypeArray]
# oscpu = Windows NT 5.1
# vendor = Firefox
# vendorSub = 1.0.7
# product = Gecko
# pr...
multiprocessing: How do I share a dict among multiple processes?
... multiprocessing import Process, Manager
def f(d):
d[1] += '1'
d['2'] += 2
if __name__ == '__main__':
manager = Manager()
d = manager.dict()
d[1] = '1'
d['2'] = 2
p1 = Process(target=f, args=(d,))
p2 = Process(target=f, args=(d,))
p1.start()
p2.start()
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Find an element in a list of tuples
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240
If you just want the first number to match you can do it like this:
[item for item in a if it...