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What is tail recursion?
...return x;
} else {
return x + recsum(x - 1);
}
}
If you called recsum(5), this is what the JavaScript interpreter would evaluate:
recsum(5)
5 + recsum(4)
5 + (4 + recsum(3))
5 + (4 + (3 + recsum(2)))
5 + (4 + (3 + (2 + recsum(1))))
5 + (4 + (3 + (2 + 1)))
15
Note how every recur...
ProcessStartInfo hanging on “WaitForExit”? Why?
...re that the buffer doesn't get full. To avoid any deadlocks and collect up all output from both StandardOutput and StandardError you can do this:
EDIT: See answers below for how avoid an ObjectDisposedException if the timeout occurs.
using (Process process = new Process())
{
process.StartInfo....
SVN+SSH, not having to do ssh-add every time? (Mac OS)
...e, I edited the ~/.ssh/config file (you may have to create it) to point to all the keys I have. Mine has the following:
IdentityFile ~/.ssh/identity
IdentityFile ~/.ssh/id_rsa
IdentityFile ~/.ssh/id_dsa
IdentityFile ~/.ssh/my_other_identity_here
IdentityFile ~/.ssh/yet_another_identity_here
Acco...
How do I auto-hide placeholder text upon focus using css or jquery?
This is done automatically for every browser except Chrome .
26 Answers
26
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System.currentTimeMillis vs System.nanoTime
...e in movement is directly proportional to the elapsed time since the last call and I want to be as precise as possible.
10 ...
How to access property of anonymous type in C#?
...null in three different situations!
o is null, so there is no object at all
o is non-null but doesn't have a property Foo
o has a property Foo but its real value happens to be null.
So this is not equivalent to the earlier examples, but may make sense if you want to treat all three cases the sa...
how can you easily check if access is denied for a file in .NET?
Basically, I would like to check if I have rights to open the file before I actually try to open it; I do not want to use a try/catch for this check unless I have to. Is there a file access property I can check before hand?
...
querySelector search immediate children
...port): see full support list.
function(elem) {
return elem.querySelectorAll(':scope > someselector');
};
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Javascript: best Singleton pattern [duplicate]
...lution found:
http://code.google.com/p/jslibs/wiki/JavascriptTips#Singleton_pattern
function MySingletonClass () {
if (arguments.callee._singletonInstance) {
return arguments.callee._singletonInstance;
}
arguments.callee._singletonInstance = this;
this.Foo = function () {
// ...
...
What do ellipsis […] mean in a list?
... an infinite loop of references, so it decided to cut it short, it's not really infinite. And no, it's not really useful besides a thought experiment :)
– Óscar López
Jun 18 '13 at 3:44
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