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Why are my basic Heroku apps taking two seconds to load?
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Pinging your server to keep it from idling is crapping in your own nest. These services you are talking about are free. They need to conserve resources. If everyone pings their server, none get swapped out, and the provider has to scale up. That costs ...
Output of git branch in tree like fashion
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I love gitk, but I didn't figure out gitk in Mac. If you have any suggestion, please let me know. I started using Github Desktop but love to work on command line.
– AMIC MING
Jul 13 '16 at 18:44
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How do you get the index of the current iteration of a foreach loop?
...numeration, and cannot be done." -- This is nonsense, as the answers by David B and bcahill make clear. An index is an enumeration over a range, and there's no reason one cannot enumerate two things in parallel ... that's exactly what the indexing form of Enumerable.Select does.
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What's the fastest way to loop through an array in JavaScript?
...swered Aug 31 '11 at 3:00
jondavidjohnjondavidjohn
57.9k2121 gold badges108108 silver badges150150 bronze badges
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Proper usage of Optional.ifPresent()
...uper User> as argument. You're passing it an expression whose type is void. So that doesn't compile.
A Consumer is intended to be implemented as a lambda expression:
Optional<User> user = ...
user.ifPresent(theUser -> doSomethingWithUser(theUser));
Or even simpler, using a method re...
Return from lambda forEach() in java
... not use orElse(null) on an Optional. The main point of Optional is to provide a way to indicate the presence or absence of a value instead of overloading null (which leads to NPEs). If you use optional.orElse(null) it buys back all of the problems with nulls. I'd use it only if you can't modify the...
How do I migrate an SVN repository with history to a new Git repository?
...n about the corresponding SVN revision to the commit message (i.e. git-svn-id: svn://svn.mycompany.com/myrepo/<branchname/trunk>@<RevisionNumber> <Repository UUID>)
If a user name is not found, update your users.txt file then:
cd dest_dir-tmp
git svn fetch
You might have to rep...
CMake: Project structure with unit tests
...ain.cpp (in this case just src/sqr.cpp and src/sqr.h), and then you can avoid listing (and more importantly re-compiling) all the sources twice.
For question 3, these commands add a test called "MyTest" which invokes your executable "test" without any arguments. However, since you've added these c...
How to monitor the memory usage of Node.js?
...48, heapUsed: 4528072 }
> process.memoryUsage(); // Memory usage after idling
{ rss: 23293952, heapTotal: 11803648, heapUsed: 4753376 }
In this simple example, you can see that allocating an array of 10M elements consumers approximately 80MB (take a look at heapUsed).
If you look at V8's sourc...
Zooming MKMapView to fit annotation pins?
...ations:animated:, from MKMapView.h:
// Position the map such that the provided array of annotations are all visible to the fullest extent possible.
- (void)showAnnotations:(NSArray *)annotations animated:(BOOL)animated NS_AVAILABLE(10_9, 7_0);
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