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Removing duplicates in lists
...u’re often better off using a set, especially because it gives you a lot more operations to work with. Check out this question for more details and alternative ways to preserve the order when removing duplicates.
Finally note that both the set as well as the OrderedDict/dict solutions require y...
Functional style of Java 8's Optional.ifPresent and if-not-Present?
...I could not find any alternatives, here another implementation I preferred more
public class OptionalConsumer<T> {
private Optional<T> optional;
private OptionalConsumer(Optional<T> optional) {
this.optional = optional;
}
public static <T> OptionalC...
Haskell testing workflow
...es its output into your dist dir.
For benchmarking, the story is a little more manual, there is no 'cabal benchmark' option. You could wire your benchmarks into your test hook, but I like to run them by hand, since Criterion has so many graphical reporting options. You can add your benchmarks to th...
How do I create a dictionary with keys from a list and values defaulting to (say) zero? [duplicate]
...n initialize it only with immutable objects (int/float, string,...). It is more pythonic for your case (default value is 0) and very probably it is also faster.
– eumiro
Oct 6 '10 at 10:31
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How to find out if you're using HTTPS without $_SERVER['HTTPS']
... would have to test using the HTTP_X_FORWARDED_PROTO header, but it's much more complex to do; see latest comments below this answer.
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Is it possible to use the instanceof operator in a switch statement?
... OP's question was about type based dispatching. If your do() method needs more input in order to dispatch than your problem is IMHO outside the scope of the question discussed here.
– jmg
May 29 '15 at 16:16
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Android activity life cycle - what are all these methods for?
...lled by the OS in extreme situations, such as if the activity tries to use more memory than is available on the device as this could cause the UI to become unresponsive.
Paused - When the device goes to sleep, or an activity is still visible but partially hidden by a new, non-full-sized or transpar...
Is it possible only to declare a variable without assigning any value in Python?
...thing to None, make sure that's what you really want, and assign something more meaningful if you can.
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Writing files in Node.js
... to be easier to write to /home/jane/test.txt. Changing /home to something more permissive than 755 is a huge mistake.
– jane arc
Jan 26 '14 at 23:05
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Java Singleton and Synchronization
... @PeterRader They don't need to be static, but it might make more sense if they were. Amended as requested.
– Jeffrey
Sep 29 '13 at 17:26
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