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What's the point of NSAssert, actually?
... assertion fails, the app crashes. Is that the reason why to use NSAssert? Or what else is the benefit of it? And is it right to put an NSAssert just above any assumption I make in code, like a function that should never receive a -1 as param but may a -0.9 or -1.1?
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...re below, showing that the version with an empty array consistently outperforms the version with a presized array. Note that if you can reuse an existing array of the correct size, the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark ...
Why can't overriding methods throw exceptions broader than the overridden method?
...e overriding method in a subclass can only declare to throw that exception or its subclass. For example:
class A {
public void foo() throws IOException {..}
}
class B extends A {
@Override
public void foo() throws SocketException {..} // allowed
@Override
public void foo() throws S...
How much does it cost to develop an iPhone application? [closed]
How much can a developer charge for an iPhone app like Twitterrific ?
10 Answers
10
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Difference between Node object and Element object?
...t.getElementsByClassName()
returns NodeList object(Collection of Elements or Nodes?)
5 Answers
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Get underlying NSData from UIImage
I can create UIImage from NSData using [UIImage imageWithData:] or [UIImage initWithData:] methods.
6 Answers
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Java logical operator short-circuiting
Which set is short-circuiting, and what exactly does it mean that the complex conditional expression is short-circuiting?
9...
What is meant by the term “hook” in programming?
...rred from the conversation that a hook is a type of function. I searched for a definition but was unable to find a good answer. Would someone be able to give me an idea of what this term generally means and perhaps a small example to illustrate the definition?
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What are the differences between a HashMap and a Hashtable in Java?
...htable is synchronized, whereas HashMap is not. This makes HashMap better for non-threaded applications, as unsynchronized Objects typically perform better than synchronized ones.
Hashtable does not allow null keys or values. HashMap allows one null key and any number of null values.
One of HashMap...
Check whether variable is number or string in JavaScript
Does anyone know how can I check whether a variable is a number or a string in JavaScript?
32 Answers
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