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SignalR: Why choose Hub vs. Persistent Connection?
...ghly up-voted comment below:
Partially correct. You can get topics or groups in persistent connections as well. The big difference is dispatching different types of messages. For example you have different kinds of messages and you want to send different kinds of payloads. With persistent conne...
Best way to select random rows PostgreSQL
...ROM params p
,generate_series(1, 1100) g -- 1000 + buffer
GROUP BY 1 -- trim duplicates
) r
JOIN big USING (id)
LIMIT 1000; -- trim surplus
Generate random numbers in the id space. You have "few gaps", so add 10 % (enough t...
Knight's Shortest Path on Chessboard
...blocks.
There are 3 patterns to notice:
The incrementing blue vertical groups of 4
The "primary" red diagonals (they run top-left to bottom-right, like a backslash)
The "secondary" green diagonals (same orientation as red)
(Make sure you see both sets of diagonals as top-left to bottom-right. ...
Multiple inputs with same name through POST in php
...
Eric answer is correct, but the problem is the fields are not grouped.
Imagine you have multiple streets and cities which belong together:
<h1>First Address</h1>
<input name="street[]" value="Hauptstr" />
<input name="city[]" value="Berlin" />
<h2>Secon...
What is the point of Lookup?
...
It's a cross between an IGrouping and a dictionary. It lets you group items together by a key, but then access them via that key in an efficient manner (rather than just iterating over them all, which is what GroupBy lets you do).
For example, you c...
Disable a Maven plugin defined in a parent POM
...rks for me when disabling Findbugs in a child POM:
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>findbugs-maven-plugin</artifactId>
<executions>
<execution>
<id>ID_AS_IN_PARENT</id> <!-- id is neces...
Why is Go so slow (compared to Java)?
... And here some details from that same thread that you have excluded - groups.google.com/group/golang-nuts/msg/2e568d2888970308
– igouy
Apr 24 '10 at 17:22
3
...
Clicking the text to select corresponding radio button
... label on the form itself. You want to put labels on each individual radio group, as shown below.
<form>
<p>What is my middle name?</p>
<br>
<input id="349" type="radio" value="1" name="question1">
<label for="349">Abe</label>
<br>
...
Using Phonegap for Native Application development [closed]
...: http://cubiq.org/dropbox/clickdelay.html
FastClick v TouchStart: http://groups.google.com/group/phonegap/browse_thread/thread/f5f5c78e26513821?pli=1
http://forum.jquery.com/topic/ontouch-instead-of-onclick-event
http://wiki.phonegap.com/w/page/16494809/Performance-tips-for-device/
http://www.deve...
Android splash screen image sizes to fit all devices
... is from 2013 and is seriously outdated. As of Android 3.2 there are now 6 groups of screen density. This answer will be updated as soon as I am able, but with no ETA. Refer to the official documentation for all the densities at the moment (although information on specific pixel sizes is as always h...