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MySQL error 2006: mysql server has gone away
...termittent then its better to release your connection so you don't used up all the connections. Rebuilding the connection is generally cheap. +1
– Yzmir Ramirez
Nov 3 '11 at 0:48
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What are the main disadvantages of Java Server Faces 2.0?
...ts which seem to make development much faster than with ASP.NET MVC, especially on AJAX-heavy sites. Integration testing looked very nice too.
...
Android Whatsapp/Chat Examples [closed]
...e to understand how chat applications are programmed.
There is a website called Scringo. These awesome people provide their own SDK which you can integrate in your existing application to exploit cool features like radaring, chatting, feedback, etc. So if you are looking to integrate chat in applic...
jQuery validation: change default error message
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You can specify your own messages in the validate call. Lifting and abbreviating this code from the Remember the Milk signup form used in the Validation plugin documentation (http://jquery.bassistance.de/validate/demo/milk/), you can easily specify your own messages:
var va...
Count the number of occurrences of a string in a VARCHAR field?
...rough text that also has words with capitalized letters (like German where all nouns are written with capitalized letter). The REPLACE only replaces exact matches. To consider all words you need to change the replace above to: LENGTH( REPLACE ( LOWER(description), "value", "") ) and make sure that "...
quick random row selection in Postgres
... make It sense to use a N less than SELECT COUNT(*)?, I mean, not use all the values in the table but only a part of them?
– Juan
Mar 14 '11 at 11:00
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HTML if image is not found
...
Seems works in all major browsers. Just swap default and original. So that object renders original image and img default one
– Evgeny
Dec 16 '14 at 10:28
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Check if an array is empty or exists
...y" !== "array"
typeof array == "undefined"; // => true
Case Null
Generally speaking, null is state of lacking a value. For example a variable is null when you missed or failed to retrieve some data.
array = searchData(); // can't find anything
array == null; // => true
Case Not a...
Styling HTML email for Gmail
...
}
</style>
<xml>
<o:OfficeDocumentSettings>
<o:AllowPNG/>
<o:PixelsPerInch>96</o:PixelsPerInch>
</o:OfficeDocumentSettings>
</xml>
<![endif]-->
This is just a simple example, but, who know, it might come in handy some time.
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Tool for generating railroad diagram used on json.org [closed]
...string and value using string ::= ... and value ::= ... The references are all shown.
Check out some of the example diagrams on the page. They have XML and even EBNF itself.
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