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powershell 2.0 try catch how to access the exception
...this:
try {
$w = New-Object net.WebClient
$d = $w.downloadString('http://foo')
}
catch [Net.WebException] {
Write-Host $_.Exception.ToString()
}
The exception is in the $_ variable. You might explore $_ like this:
try {
$w = New-Object net.WebClient
$d = $w.downloadString('ht...
How to implement my very own URI scheme on Android
...
what if the link is like http://www.host.com/directory/value? How can we get this value?
– Bugs Happen
Nov 5 '15 at 6:36
3
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How do MySQL indexes work?
...n do something like this:
SELECT url FROM url_table WHERE url_hash=CRC32("http://gnu.org");
The problem with the above example is that since the CRC32 function generates a quite small hash, you'll end up with a lot of collisions in the hashed values. If you need exact values, you can fix this pro...
How to debug .htaccess RewriteRule not working
...RewriteLogLevel 9
Put the above 3 lines in your virtualhost. restart the httpd.
RewriteLogLevel 9 Using a high value for Level will slow down your Apache server dramatically! Use the rewriting logfile at a Level greater than 2 only for debugging!
Level 9 will log almost every rewritelog detail....
Why do Java webapps use .do extension? Where did it come from?
...".do" as the extension for their web controller (MVC) resources. Example: http://example.com/register.do
3 Answers
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How do 20 questions AI algorithms work?
... can approximate binary search.
Wikipedia gives a more complete example:
http://en.wikipedia.org/wiki/Decision_tree_learning
And some general background:
http://en.wikipedia.org/wiki/Decision_tree
share
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HSL to RGB color conversion
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* Converts an HSL color value to RGB. Conversion formula
* adapted from http://en.wikipedia.org/wiki/HSL_color_space.
* Assumes h, s, and l are contained in the set [0, 1] and
* returns r, g, and b in the set [0, 255].
*
* @param {number} h The hue
* @param {number} s The s...
How do you implement a “Did you mean”? [duplicate]
... outlined how it works; he even gives a 20ish line Python implementation:
http://googlesystem.blogspot.com/2007/04/simplified-version-of-googles-spell.html
http://www.norvig.com/spell-correct.html
Dr Norvig also discusses the "did you mean" in this excellent talk. Dr Norvig is head of research ...
How to call any method asynchronously in c#
...t; AccessTheWebAsync()
{
// You need to add a reference to System.Net.Http to declare client.
HttpClient client = new HttpClient();
// GetStringAsync returns a Task<string>. That means that when you await the
// task you'll get a string (urlContents).
Task<string> ...
What does ~~ (“double tilde”) do in Javascript?
...just converts a string to a number in a round-about way.
See this thread: http://www.sitepoint.com/forums/showthread.php?t=663275
Also, more detailed info is available here: http://dreaminginjavascript.wordpress.com/2008/07/04/28/
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