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Best Practice for Exception Handling in a Windows Forms Application?
...) per thread
Generic Exceptions caught should be published
Log Exception.ToString(); never log only Exception.Message!
Don't catch (Exception) more than once per thread
Don't ever swallow exceptions
Cleanup code should be put in finally blocks
Use "using" everywhere
Don't return special values on er...
How is the java memory pool divided?
...able state necessary for the JVM to run, such as class definitions and the String constant pool. Note that the PermGen space is planned to be removed from Java 8, and will be replaced with a new space called Metaspace, which will be held in native memory.
reference：http://www.programcreek.com/2013...
How to check file MIME type with javascript before upload?
...r = "";
for(var i = 0; i < arr.length; i++) {
header += arr[i].toString(16);
}
console.log(header);
// Check the file signature against known types
};
fileReader.readAsArrayBuffer(blob);
You can then determine the real MIME type like so (more file signatures here and here):
swit...
Haskell: How is pronounced? [closed]
...ut it makes a fine Applicative, in which case (<*>) becomes a way of stringing together a generalized version of zipWith, so perhaps we can imagine calling it fzipWith?
This zipping idea actually brings us full circle. Recall that math stuff earlier, about monoidal functors? As the name sug...
What exactly are iterator, iterable, and iteration?
... ITERABLE is:
anything that can be looped over (i.e. you can loop over a string or file) or
anything that can appear on the right-side of a for-loop: for x in iterable: ... or
anything you can call with iter() that will return an ITERATOR: iter(obj) or
an object that defines __iter__ that retur...
Why does this (null || !TryParse) conditional result in “use of unassigned local variable”?
...(out y))
y = 10;
return y;
}
static void Main(string[] args)
{
var result = N(new EvilBool());
// Prints 3!
Console.WriteLine(result);
}
}
class EvilBool
{
private bool value;
public static bool operator true(EvilBool b)
{
...
Is PowerShell ready to replace my Cygwin shell on Windows? [closed]
...
grep
Select-String cmdlet and -match operator work with regexes. Also you can directly make use of .NET's regex support for more advanced functionality.
sort
Sort-Object is more powerful (than I remember *nix's sort). Allowing mult...
Mongodb Explain for Aggregation framework
...regation stages and expressions including support for working with arrays, strings, and facets.
There are also a number of Aggregation Pipeline Optimizations that automatically happen depending on your MongoDB server version. For example, adjacent stages may be coalesced and/or reordered to impro...
When do you use POST and when do you use GET?
...ut I need to pass ana array or a JSON as a a parameter, is still viable to stringify the array and send it as GET, or in this case is it okay to just use POST and send the array in the body?
– A.J Alhorr
Aug 25 at 12:23
...
Check if at least two out of three booleans are true
... System.out.println("sum: "+sum);
}
public static void main(String[] args) throws InterruptedException
{
while(true)
{
work();
Thread.sleep(1000);
}
}
}
This prints the following on my machine (running Ubuntu on Intel Core 2 + ...