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Clojure: cons (seq) vs. conj (list)
...ogramming languages and their implementation; that's what's meant when "avoiding consing" is mentioned.
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Difference between Visibility.Collapsed and Visibility.Hidden
What are differences between Visibility.Collapsed and Visibility.Hidden in WPF?
3 Answers
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Convert Time from one time zone to another in Rails
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or you can just use hour ident now.in_time_zone(3)
– fl00r
Mar 24 '11 at 13:00
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C#: Abstract classes need to implement interfaces?
...ly define those members with the abstract keyword:
interface IFoo
{
void Bar();
}
abstract class Foo : IFoo
{
public abstract void Bar();
}
Or to put it another way: you don't have to "implement" it (which would be a terrible limitation on abstract classes); however, in C#, you do have t...
std::shared_ptr of this
... purpose. You inherit from it and you can call .shared_from_this() from inside the class. Also, you are creating circular dependencies here that can lead to resource leaks. That can be resolved with the use of std::weak_ptr. So your code might look like this (assuming children rely on existence of p...
Do event handlers stop garbage collection from occurring?
...sher. It could be a WeakReference, and in some cases that might be a good idea, but as often as not it will be a strong one.
– supercat
Apr 13 '12 at 15:37
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How to create default value for function argument in Clojure
...Integer/parseInt s base)))
Note that assuming false and nil are both considered non-values, (if (nil? base) 10 base) could be shortened to (if base base 10), or further to (or base 10).
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?
... it in practice. Don't use %f to printf arguments of type double. It is a widespread habit born back in C89/90 times, but it is a bad habit. Use %lf in printf for double and keep %f reserved for float arguments.
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JVM option -Xss - What does it do exactly?
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True, but I didn't say -Xss is the only cause for SOE and OOME, but the other way round - if set incorrectly, it can cause one of the two.
– Adam Adamaszek
Jun 3 '15 at 13:48
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Stopping fixed position scrolling at a certain point?
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Do you mean sort of like this?
http://jsfiddle.net/b43hj/
$(window).scroll(function(){
$("#theFixed").css("top", Math.max(0, 250 - $(this).scrollTop()));
});
$(window).scroll(function(){
$("#theFixed").css("top", Math.max(0, 100 - $(this).scrollTop()...