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What is :: (double colon) in Python when subscripting sequences?
...y see what is happening, you need to coerce the range to a list, np.array, etc.
– PikalaxALT
Sep 19 '14 at 0:54
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Java concurrency: Countdown latch vs Cyclic barrier
...s reset and can be used again.
For simple use cases - services starting etc... a CountdownLatch is fine. A CyclicBarrier is useful for more complex co-ordination tasks. An example of such a thing would be parallel computation - where multiple subtasks are involved in the computation - kind of l...
Why does HTML think “chucknorris” is a color?
...hich covers it in great detail, including varying lengths of color values, etc.
If we apply the rules in turn from the blog post, we get the following:
Replace all nonvalid hexadecimal characters with 0's
chucknorris becomes c00c0000000
Pad out to the next total number of characters divisible b...
Can I protect against SQL injection by escaping single-quote and surrounding user input with single-
... all times, and are very dependant on your actual code around it:
Second-order SQL Injection - if an SQL query is rebuilt based upon data retrieved from the database after escaping, the data is concatenated unescaped and may be indirectly SQL-injected. See
String truncation - (a bit more complica...
Is there a way to auto expand objects in Chrome Dev Tools?
...the properties (hasOwn) in the middle of 50 prototype methods, properties etc...
– Kev
Oct 21 '15 at 20:25
this gives...
How do you create a remote Git branch?
...h -u origin your_branch
Teammates can reach your branch, by doing:
git fetch
git checkout origin/your_branch
You can continue working in the branch and pushing whenever you want without passing arguments to git push (argumentless git push will push the master to remote master, your_branch local...
How to convert an NSTimeInterval (seconds) into minutes
...rt your NSTimeInterval not only to minutes but also to days, months, week, etc,... I think this is a more generic approach
Use NSCalendar method:
(NSDateComponents *)components:(NSUInteger)unitFlags fromDate:(NSDate *)startingDate toDate:(NSDate *)resultDate options:(NSUInteger)opts
"Returns, as a...
PHP: How to send HTTP response code?
...iate message, and the status code with your code as appropriate (404, 501, etc)
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UnicodeEncodeError: 'latin-1' codec can't encode character
... Additionally, we'd better to set utf8mb4 for mysql if having emoji .etc, refer to what-is-the-difference-between-utf8mb4-and-utf8-charsets-in-mysql
– Cheney
Jun 26 '18 at 3:37
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Can't connect to local MySQL server through socket homebrew
...ers/files that were not removed
rm -rf /usr/local/var/mysql
rm /usr/local/etc/my.cnf
Reinstall mysql and link it
brew install mysql@5.6
brew link --force mysql@5.6
Enable and start the service
brew services start mysql@5.6
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