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Is SecureRandom thread safe?
...lution is to manually synchronize on the SecureRandom instance first. This means each call stack will acquire two locks on the same object, but that is usually very cheap on modern JVMs. That is, there is not much harm in explicitly synchronizing yourself. For example:
SecureRandom rnd = ...;
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jQuery append() vs appendChild()
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@RobFox: by safe I meant to say that if you're using jquery then you are safe to use always append (there is no situation where DOM appendchild is prefered). In relation to domManip, it seems the main objective is using DOM DocumentFragments. H...
What's the difference between EscapeUriString and EscapeDataString?
... either. Actually, it will work in many if not most cases, but it is by no means reliable.
You should always construct your URLs and query strings by gathering the key-value pairs and percent-encoding and then concatenating them with the necessary separators. You can use Uri.EscapeDataString for thi...
Counting the Number of keywords in a dictionary in python
...1000
len(d.keys())
# 1000
%timeit len(d)
# 41.9 ns ± 0.244 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
%timeit len(d.keys())
# 83.3 ns ± 0.41 ns per loop (mean ± std. dev. of 7 runs, 10000000 loops each)
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I want my android application to be only run in portrait mode?
...ion="fullSensor" or android:screenOrientation="unspecified". fullSensor Means either you have ON the "Rotate off" or not it will change the orientation based on you move the phone. unspecified Means if you have ON the Rotate off then it will stay only in that orientation and if not then it wil...
Difference between path.normalize and path.resolve in Node.js
...m /Users/mtilley/src/testing to /Users/mtilley/src/node.
Ironically, this means that path.resolve() produces a relative path in absolute terms (you could execute it anywhere, and it would produce the same result), whereas path.normalize() produces an absolute path in relative terms (you must execut...
How do I properly clean up Excel interop objects?
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I did not understand what "two dots" mean. Can you please explain?
– A9S6
Jan 27 '10 at 13:18
22
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Does the order of LINQ functions matter?
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@gdoron: It's not really clear what you mean, to be honest. Sounds like you might want to write a new question. Bear in mind that Queryable isn't trying to interpret your query at all - its job is solely to preserve your query so that something else can interpret i...
Why does viewWillAppear not get called when an app comes back from the background?
...recommend against calling the viewWillAppear yourself -- it has a specific meaning which you shouldn't subvert! A refactoring you can do to achieve the same effect might be as follows:
- (void)viewWillAppear:(BOOL)animated {
[super viewWillAppear:animated];
[self doMyLayoutStuff:self];
}
-...
Access denied for user 'root'@'localhost' while attempting to grant privileges. How do I grant privi
...demonstrating that I've checked the basics. Though of course, that doesn't mean I haven't missed something totally obvious. :-)
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