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Why use a ReentrantLock if one can use synchronized(this)?
I'm trying to understand what makes the lock in concurrency so important if one can use synchronized (this) . In the dummy code below, I can do either:
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Is it possible to use Visual Studio on macOS?
...y're not quite the same, VS for Mac is closer to Xamarin Studio. But it is what Microsoft has released as the VS experience for mac :)
– vyedin
Dec 12 '16 at 22:21
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SQLite - UPSERT *not* INSERT or REPLACE
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@Cornelius: That's clear, but that's not what happens in the first example. The first example is meant to forcibly set all columns, which is exactly what happens, no matter whether the record is inserted or replaced. So, why is that considered bad? The linked answer...
Convert UTC Epoch to local date
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Was wondering what on earth was up. Very good to know that epochTime !== javascriptTime when it comes to date parsing. Thanks!
– GrayedFox
Mar 21 '18 at 14:59
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In git, what is the difference between merge --squash and rebase?
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can you explain what is dummy commit in 2nd picture ?? I am a beginner in git.
– Yusuf
Jun 6 at 14:57
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Best practices for overriding isEqual: and hash
...knowledge on the matter, and can result in people using it without knowing what are they doing. I don't understand why this question has so many upvotes.
– Ricardo Sanchez-Saez
Oct 12 '11 at 20:41
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Rails.env vs RAILS_ENV
I see both in examples when checking what env one is running in. What's preferred? Are they, for all intents and purposes equal?
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Explode string by one or more spaces or tabs
...chString);
Sources:
strip out multi-byte white space from a string PHP
What are all the Japanese whitespace characters?
(I don't have enough reputation to post a comment, so I'm wrote this as an answer.)
share
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Making git auto-commit
...commit without git add or git commit -a. Making some adjustments, here is what I am using on Debian to track all changes to my calendar file:
/etc/rc.local:
su -c /home/<username>/bin/gitwait -l <username>
/home/<username>/bin/gitwait:
#!/bin/bash
#
# gitwait - watch file ...
What does template mean?
...Non-type Parameters
Pointers
References
Integral constant expressions
What you have there is of the last kind. It's a compile time constant (so-called constant expression) and is of type integer or enumeration. After looking it up in the standard, i had to move class templates up into the types...