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How do I programmatically shut down an instance of ExpressJS for testing?
I'm trying to figure out how to shut down an instance of Express. Basically, I want the inverse of the .listen(port) call - how do I get an Express server to STOP listening, release the port, and shutdown cleanly?
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When to favor ng-if vs. ng-show/ng-hide?
...ise the difference:
ng-if will remove elements from DOM. This means that all your handlers or anything else attached to those elements will be lost. For example, if you bound a click handler to one of child elements, when ng-if evaluates to false, that element will be removed from DOM and your cli...
When do you use map vs flatMap in RxJava?
...r Exception problem, just throw it with a Non checked exception : RX will call the onError handler for you.
Observable.from(jsonFile).map(new Func1<File, String>() {
@Override public String call(File file) {
try {
return new Gson().toJson(new FileReader(file), Object.c...
How can I find the current OS in Python? [duplicate]
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I usually use sys.platform (docs) to get the platform. sys.platform will distinguish between linux, other unixes, and OS X, while os.name is "posix" for all of them.
For much more detailed information, use the platform module. Th...
C# Sort and OrderBy comparison
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I think, it's much different of sorting a very small list (3 items) 1000000 times, or by sorting a very large list (1000000 items) just a few times. Both is very relevant. In practice, medium size of list (what's medium? ... let's say 1000 items for now) is most interesting...
How do I get the RootViewController from a pushed controller?
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:) ty. It still seems hacky - :) I really wanted an "official" member to do the job, something like self.navigationController.rootViewController, but alas, no such thing..
– bobobobo
Nov 25 '09 at 2:21
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
...List<? super String> contravariantList = aList;
You can now access all methods of covariantList that doesn't take a generic parameter (as it must be something "extends Object"), but getters will work fine (as the returned object will always be of type "Object")
The opposite is true for cont...
How to remove the last character from a string?
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replace will replace all instances of a letter. All you need to do is use substring():
public String method(String str) {
if (str != null && str.length() > 0 && str.charAt(str.length() - 1) == 'x') {
str = str.subs...
Do C# Timers elapse on a separate thread?
...umentation on Timers states:
The System.Threading.Timer class makes
callbacks on a ThreadPool thread and
does not use the event model at all.
So indeed the timer elapses on a different thread.
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Inline SVG in CSS
...possible. I just went to the standard specification and stated it was virtually impossible, which turned out to be a mistake (sort of)
– toniedzwiedz
May 26 '12 at 19:05
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