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Missing return statement in a non-void method compiles
...nts after the while loop are unreachable (dead code) and would never be executed. But why doesn't the compiler even warn about returning something? Or why would a language allow us to have a non-void method having an infinite loop and not returning anything?
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What does the tilde (~) mean in my composer.json file?
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Tilde means next significant release. In your case, it is equivalent to >= 2.0, < 3.0.
The full explanation is at Tilde Version Range docs page:
The ~ operator is best explained by example: ~1.2 is equivalent to >=1.2 <2.0...
How to find if a native DLL file is compiled as x64 or x86?
I want to determine if a native assembly is complied as x64 or x86 from a managed code application ( C# ).
11 Answers
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Algorithm to find Largest prime factor of a number
...1
return factors
pfs = prime_factors(1000)
largest_prime_factor = max(pfs) # The largest element in the prime factor list
The above method runs in O(n) in the worst case (when the input is a prime number).
EDIT:
Below is the O(sqrt(n)) version, as suggested in the comment. Here is the code...
if A vs if A is not None:
...the is None test was indeed the slowest for me. In pypy they all measured exactly the same :)
– John La Rooy
Mar 25 '13 at 6:09
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How to align checkboxes and their labels consistently cross-browsers
...e constantly. How do folks around Stack Overflow vertically align checkboxes and their labels consistently cross-browser ? Whenever I align them correctly in Safari (usually using vertical-align: baseline on the input ), they're completely off in Firefox and IE. Fix it in Firefox, and Saf...
How to detect Ctrl+V, Ctrl+C using JavaScript?
...t I think it should be the op's decision... Also the code could easily be extended to add functionality, rather than take it away (like a more advanced clipboard, or Ctrl+s triggering a server-side save).
$(document).ready(function() {
var ctrlDown = false,
ctrlKey = 17,
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Python AttributeError: 'module' object has no attribute 'Serial' [duplicate]
...rstand why it does work in some cases (for instance when you look at some examples in the serial website)
– VGO
Jul 9 '12 at 22:39
33
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Downloading a picture via urllib and python
...ng urllib.request.urlretrieve (part of Python 3's legacy interface, works exactly the same)
import urllib.request
urllib.request.urlretrieve("http://www.gunnerkrigg.com//comics/00000001.jpg", "00000001.jpg")
share
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Unmount the directory which is mounted by sshfs in Mac [closed]
I've installed OSXFUSE in my mac and used sshfs to mount a remote directory. Now I would like to unmount it, but can't find the way.
My OS is OSX 10.8 Mountain.
Can anyone help?
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