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Is if(items != null) superfluous before foreach(T item in items)?
...roduces less memory pressure. Enumerable.Empty<string> would be even more preferable because it caches the empty array it generates and re-uses it.
– Eric Lippert
Jun 23 '11 at 14:23
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How to document a method with parameter(s)?
...ring
'''
This markup supports cross-referencing between documents and more. Note that the Sphinx documentation uses (e.g.) :py:attr: whereas you can just use :attr: when documenting from the source code.
Naturally, there are other tools to document APIs. There's the more classic Doxygen which ...
Get the current displaying UIViewController on the screen in AppDelegate.m
...out a way to navigate through the controllers hierarchy.
If you give some more details about the way you defined your app, then I might give some more hint.
EDIT:
If you want the topmost view (not view controller), you could check
[[[[UIApplication sharedApplication] keyWindow] subviews] lastObj...
How to get the system uptime in Windows? [closed]
...arious system statistics such as installation date, installed hotfixes and more.
Open a Command Prompt and type the following command:
systeminfo
You can also narrow down the results to just the line you need:
systeminfo | find "System Boot Time:"
3: By using the Uptime Utility
Microsoft ha...
Colorized grep — viewing the entire file with highlighted matches
...
It appears that the "$" is needed if matching more than a one pattern. egrep --color "pattern1|pattern2|$". Otherwise the color highlighting does not happen.
– ZaSter
Sep 19 '13 at 0:10
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How do I calculate someone's age in Java?
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JDK 9 is the current production version. More true than ever.
– duffymo
Apr 10 '18 at 15:23
2
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Comprehensive beginner's virtualenv tutorial? [closed]
...://simononsoftware.com/virtualenv-tutorial-part-2/
And this is a slightly more practical one: https://web.archive.org/web/20160404222648/https://iamzed.com/2009/05/07/a-primer-on-virtualenv/
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How can I convert spaces to tabs in Vim or Linux?
...ow to convert spaces to tabs without finding what I need. There seem to be more questions about how to convert tabs to spaces, but I'm trying to do the opposite.
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How to bind 'touchstart' and 'click' events but not respond to both?
... on this and similar questions all seem hacky. The google solution, while more thoroughly thought through than most, seems like merely a more robust hack. For something as simple as a click handler, it seems like the solution should be simple. Has no one found a non-hack solution for this issue?
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How to set timeout on python's socket recv method?
...ecv() will never block indefinitely. select() can also be used to wait on more than one socket at a time.
import select
mysocket.setblocking(0)
ready = select.select([mysocket], [], [], timeout_in_seconds)
if ready[0]:
data = mysocket.recv(4096)
If you have a lot of open file descriptors, ...