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Difference between Select and ConvertAll in C#
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And what about the performances? If I have a List, is it more performant to use ConvertAll or Select?
– Nicolas
Dec 7 '10 at 14:28
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How do I retrieve an HTML element's actual width and height?
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Beware! offsetHeight/offsetWidth can return 0 if you've done certain DOM modifications to the element recently. You may have to call this code in a setTimeout call after you've modified the element.
– Dan Fabulich
Jan 19 '10 at 5:5...
Node.js/Express.js App Only Works on Port 3000
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The following works if you have something like this in your app.js:
http.createServer(app).listen(app.get('port'),
function(){
console.log("Express server listening on port " + app.get('port'));
});
Either explicitly hardcode your code ...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
... and is generally safer to use. But it is not portable - POSIX doesn't specify what it does and only some shells support it (beside bash, I heard ksh supports it too). For example, you can do
[[ -e $b ]]
to test whether a file exists. But with [, you have to quote $b, because it splits the argum...
setTimeout in for-loop does not print consecutive values [duplicate]
...alert(i); }, 100);
}
for (var i = 1; i <= 2; ++i)
doSetTimeout(i);
If you don't do something like this (and there are other variations on this same idea), then each of the timer handler functions will share the same variable "i". When the loop is finished, what's the value of "i"? It's 3! ...
Passing ssh options to git clone
...Option1 Value1
SshOption2 Value2
The Host entry is what you’ll specify on the command line, and the HostName is the true hostname. They can be the same, or the Host entry can be an alias. The User entry is used if you do not specify user@ on the command line.
If you must configure this on t...
Is it possible to capture a Ctrl+C signal and run a cleanup function, in a “defer” fashion?
...can use this to trap os.Interrupt.
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
go func(){
for sig := range c {
// sig is a ^C, handle it
}
}()
The manner in which you cause your program to terminate and print information is entirely up to you.
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Where to place JavaScript in an HTML file?
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For example, if you're going to be doing a bunch of jQuery stuff, you would need the library loaded before you actually try to make use of it.
– BryanH
Jul 8 '09 at 22:09
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Find the division remainder of a number
...se, maybe they wanted you to implement it yourself, which wouldn't be too difficult either.
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Constructor overloading in Java - best practice
...2) {
// Guard statements, initialize resources or throw exceptions if
// the resources are wrong
if (r1 == null) {
r1 = new Resource();
}
if (r2 == null) {
r2 = new Resource();
}
// do whatever with resources
}
}
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