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GetHashCode Guidelines in C#
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The answer is mostly, it is a valid guideline, but perhaps not a valid rule. It also doesn't tell the whole story.
The point being made is that for mutable types, you cannot base the hash code on the mutable data because two equal objects must re...
When should one use a 'www' subdomain?
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There are a ton of good reasons to include it, the best of which is here:
Yahoo Performance Best Practices
Due to the dot rule with cookies, if you don't have the 'www.' then you can't set two-dot cookies or cross-subdomain cookies a la *.example.com. There are two ...
What is the pythonic way to detect the last element in a 'for' loop?
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Most of the times it is easier (and cheaper) to make the first iteration the special case instead of the last one:
first = True
for data in data_list:
if first:
first = False
else:
between_items()
item()
This wi...
Java generics - why is “extends T” allowed but not “implements T”?
... between whether a class 'implements' or 'extends'. The constraint possibilities are 'extends' and 'super' - that is, is this class to operate with assignable to that other one (extends), or is this class assignable from that one (super).
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Can you break from a Groovy “each” closure?
Is it possible to break from a Groovy .each{Closure} , or should I be using a classic loop instead?
6 Answers
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Internal typedefs in C++ - good style or bad style?
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I think it is excellent style, and I use it myself. It is always best to limit the scope of names as much as possible, and use of classes is the best way to do this in C++. For example, the C++ Standard library makes heavy use of typ...
Difference between onStart() and onResume()
I can't get the meaning of onStart() transition state. The onResume() method is always called after onStart() . Why can't it be the onResume() is invoked after onRestart() and onCreate() methods just excluding onStart() ? What is its purpose?
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Remove IE10's “clear field” X button on certain inputs?
It's a useful feature, to be sure, but is there any way to disable it?
For instance, if the form is a single text field and already has a "clear" button beside it, it's superfluous to also have the X. In this situation, it would be better to remove it.
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Where is the itoa function in Linux?
itoa() is a really handy function to convert a number to a string. Linux does not seem to have itoa() , is there an equivalent function or do I have to use sprintf(str, "%d", num) ?
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How to quickly clear a JavaScript Object?
With a JavaScript Array, I can reset it to an empty state with a single assignment:
8 Answers
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