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How can I override the OnBeforeUnload dialog and replace it with my own?
...saved changes!';
}
Here's a reference to this from Microsoft:
When a string is assigned to the returnValue property of window.event, a dialog box appears that gives users the option to stay on the current page and retain the string that was assigned to it. The default statement that appears in...
Should a retrieval method return 'null' or throw an exception when it can't produce the return value
....
Whatever you do, I highly advise against the third option: Returning a string that says "WTF".
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Convert any object to a byte[]
...for the .Net platform
Binary Serialization
XML Serialization: Produces a string which is easily convertible to a byte[]
ProtoBuffers
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How do you add swap to an EC2 instance?
...nce.
Paging works by creating an area on your hard drive and using it for extra memory, this memory is much slower than normal memory however much more of it is available.
To add this extra space to your instance you type:
sudo /bin/dd if=/dev/zero of=/var/swap.1 bs=1M count=1024
sudo /sbin/mkswa...
What is boxing and unboxing and what are the trade offs?
...d structures, enumerations.
Reference Types are:
Classes,interfaces,arrays,strings and objects
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What is the quickest way to HTTP GET in Python?
... is the quickest way to HTTP GET in Python if I know the content will be a string? I am searching the documentation for a quick one-liner like:
...
How to handle command-line arguments in PowerShell
...hem from console if not available or stop script execution:
param (
[string]$server = "http://defaultserver",
[Parameter(Mandatory=$true)][string]$username,
[string]$password = $( Read-Host "Input password, please" )
)
Inside the script you can simply
write-output $server
since a...
Are HLists nothing more than a convoluted way of writing tuples?
...(t2)
val t2b = f2.tupled
// Inferred type of t2b is (Int, Boolean, Double, String, String, Int, Boolean)
Without using HLists (or something equivalent) to abstract over the arity of the tuple arguments to flatten it would be impossible to have a single implementation which could accept arguments o...
Is there a difference between “throw” and “throw ex”?
...hrow doesn't - the original offender would be preserved.
static void Main(string[] args)
{
try
{
Method2();
}
catch (Exception ex)
{
Console.Write(ex.StackTrace.ToString());
Console.ReadKey();
}
}
private static void Method2()
{
try
{
...
Which, if any, C++ compilers do tail-recursion optimization?
...t for program correctness.
#include <stdio.h>
static int atoi(const char *str, int n)
{
if (str == 0 || *str == 0)
return n;
return atoi(str+1, n*10 + *str-'0');
}
int main(int argc, char **argv)
{
for (int i = 1; i != argc; ++i)
printf("%s -> %d\n", argv[i], at...