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What's the difference between IQueryable and IEnumerable
I'm confused as to the difference. Being fairly new to .Net, I know I can query IEnumerables using the Linq extensions. So what is this IQueryable and how does it differ?
...
Why does SSL handshake give 'Could not generate DH keypair' exception?
...nks. Seems a pretty serious problem given the existence of servers which request a larger size! :( I tried BouncyCastle; if you set it up as preferred provider it crashes with a different exception (sigh), and I can't see an obvious way to use that just for DH. However, I found an alternative soluti...
How to force file download with PHP
...
Display your file first and set its value into url.
index.php
<a href="download.php?download='.$row['file'].'" title="Download File">
download.php
<?php
/*db connectors*/
include('dbconfig.php');
/*function to set your files*/
function output_file($file, $name, $...
Create subdomains on the fly with .htaccess (PHP)
...riteEngine on
RewriteCond %{HTTP_HOST} ^[^.]+\.example\.com$
RewriteRule !^index\.php$ index.php [L]
Inside the index.php you can than extract the subdomain using:
if (preg_match('/^([^.]+)\.example\.com$/', $_SERVER['HTTP_HOST'], $match)) {
var_dump($match[1]);
}
But all this requires that...
How can I combine hashes in Perl?
...h hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible.
...
What are important languages to learn to understand different approaches and concepts? [closed]
...est at what it does. Plus... it's really fun!
Functional+Optional Types, Qi - You say you've experience with some type systems, but do you have experience with "skinnable* type systems? No one has... but they should. Qi is like Lisp in many ways, but its type system will blow your mind.
Actors+...
Static Vs. Dynamic Binding in Java
... @technazi static binding just looks at the type (what ever is before the equals e.g Collection c = new HashSet(); so it will be seen as just a collection object when infact it is a hashset). Dyanmic binding takes into account the actual object (whats after the equals so it actually recognises its a...
Best way to store a key=>value array in JavaScript?
....
Well, now that we know javascript arrays are used typically for numeric indexing and objects more flexibly for associative indexing, we will use them together to create an array of objects that we can loop through, like so -
JSON array (array of objects) -
$(document).ready(function(){
var...
HTTP redirect: 301 (permanent) vs. 302 (temporary)
... searches for location header in response pick the new URL and replace the indexed URL with the new one and also transfer pagerank.
So search engine refreshes all indexed URL that no longer exist (301 found) with the new URL, this will retain your old webpage traffic, pagerank and divert it to the ...
The Guava library: What are its most useful and/or hidden features? [closed]
...s great for building Comparators that behave just how you want.
Maps.uniqueIndex and Multimaps.index: these methods take an Iterable and a Function and build an ImmutableMap or ImmutableListMultimap that indexes the values in the Iterable by the result of applying the function to each. So with a fu...