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Difference between “!==” and “==!” [closed]
...e is that there is no operator ==!.
This expression:
$a ==! $b
Is basically the same as this:
$a == (!$b)
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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
I'm developing an app on Heroku with a Postgresql backend. Periodically, I get this error message when trying to access the database, both from the CLI and from loading a page on the server:
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Is if(items != null) superfluous before foreach(T item in items)?
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@CodeInChaos: Do you typically find that the speed of enumerating an empty sequence is the performance bottleneck in your program?
– Eric Lippert
Jun 23 '11 at 15:19
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Android Split string
I have a string called CurrentString and is in the form of something like this
"Fruit: they taste good" . I would like to split up the CurrentString using the : as the delimiter. So that way the word "Fruit" will be split into its own string and "they taste good" will be another strin...
RSpec vs Cucumber (RSpec stories) [closed]
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Totally agree with you Abie! Cucumber integration is vital!
– dpapadopoulos
Jan 21 '19 at 9:37
add a co...
Core pool size vs maximum pool size in ThreadPoolExecutor
...When the queue is full new threads will be
created up to maxPoolSize. Once all the threads are in use and the
queue is full tasks will be rejected. As the queue reduces, so does
the number of active threads.
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How does a Java HashMap handle different objects with the same hash code?
...ng bucket, and then it will compare the key that you gave with the keys of all pairs in the bucket, by comparing them with equals().
Now you can see how this is very efficient for looking up key-value pairs in a map: by the hash code of the key the hashmap immediately knows in which bucket to look,...
Adding a public key to ~/.ssh/authorized_keys does not log me in automatically
...e some applications if you have some group or other access to files, especially if it's a web directory.
– StingeyB
Jul 18 '12 at 18:41
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Behaviour for significant change location API when terminated/suspended?
...estion.
That is, your suspended app is woken up, you don't receive any callbacks on your app delegate, instead you receive your location updates through your existing CLLocationManagerDelegate. You can detect that you are running in the background by checking the applicationState, and do limited...
mailto link with HTML body
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As you can see in RFC 6068, this is not possible at all:
The special <hfname> "body" indicates that the associated <hfvalue>
is the body of the message. The "body" field value is intended to
contain the content for the first text/plain body part of the
m...