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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 architect an Ember.js application
...raries are loaded before ember.js:
<script type='text/javascript' src='http://code.jquery.com/jquery-1.9.1.js'></script>
<script type='text/javascript' src="http://cdnjs.cloudflare.com/ajax/libs/handlebars.js/1.0.0-rc.3/handlebars.js"></script>
<script type='text/javascri...
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....
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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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...
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
...
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 ...
HSL to RGB color conversion
...
* 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 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> ...