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Why is arr = [] faster than arr = new Array?
...
Just made a test case. new Array(n) is faster in cases where you know the size of the array ahead of time jsperf.com/square-braces-vs-new-array
– Y. Yoshii
Dec 10 '19 at 3:59
...
C# Interfaces. Implicit implementation versus Explicit implementation
...ImplementedException();
}
The difference is that implicit implementation allows you to access the interface through the class you created by casting the interface as that class and as the interface itself. Explicit implementation allows you to access the interface only by casting it as the interfa...
javascript scroll event for iPhone/iPad?
... onscroll only after you've stopped scrolling.
The usual way of installing the handler works e.g.
window.addEventListener('scroll', function() { alert("Scrolled"); });
// or
$(window).scroll(function() { alert("Scrolled"); });
// or
window.onscroll = function() { alert("Scrolled"); };
// etc...
Reading InputStream as UTF-8
...ug that the OutputStreamWriter constructors have: only one of the four actually condescends to tell you when something goes wrong. You again have to use the fancy CharsetDecoder dec argument there, too. The only safe and sane thing to do is to consider all other constructors deprecated, because they...
What's so wrong about using GC.Collect()?
...utlook add-in to C#. (We did a lot of work to develop coding patterns and test cases on the VB side that guaranteed COM references were killed in a deterministic fashion when no longer needed).
– rkagerer
Nov 7 '12 at 23:25
...
Print content of JavaScript object? [duplicate]
...r p in o) {
out += p + ': ' + o[p] + '\n';
}
alert(out);
}
// now test it:
var myObject = {'something': 1, 'other thing': 2};
printObject(myObject);
Using a DOM inspection tool is preferable because it allows you to dig under the properties that are objects themselves. Firefox has FireBug...
Java: splitting a comma-separated string but ignoring commas in quotes
...ot in original question though, it was mine requirement.
My solution and test below.
String tested = "foo,bar,c;qual=\"baz,blurb\",d;junk=\"quux,syzygy\",";
long start = System.nanoTime();
String[] tokens = tested.split(",(?=([^\"]*\"[^\"]*\")*[^\"]*$)");
long timeWithSplitting = System.nanoTime(...
MongoDB logging all queries
... can log all queries:
$ mongo
MongoDB shell version: 2.4.9
connecting to: test
> use myDb
switched to db myDb
> db.getProfilingLevel()
0
> db.setProfilingLevel(2)
{ "was" : 0, "slowms" : 1, "ok" : 1 }
> db.getProfilingLevel()
2
> db.system.profile.find().pretty()
Source: http://doc...
When is an interface with a default method initialized?
...initialization. The example as follows:
interface I {
int i = 1, ii = Test.out("ii", 2);
}
interface J extends I {
int j = Test.out("j", 3), jj = Test.out("jj", 4);
}
interface K extends J {
int k = Test.out("k", 5);
}
class Test {
public static void main(String[] args) {
Sy...
ERROR ITMS-9000: “Redundant Binary Upload. There already exists a binary upload with build version '
... internal, well, build number! It goes up each time you build your app for testing, so you have a reference to bug track it which changes whenever the code does. This is why test flight lists your builds the way it does. Eg. Version 1.0.0 (2) It depends on your company how you structure the build nu...