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Is it possible to specify condition in Count()?
Is it possible to specify a condition in Count() ? I would like to count only the rows that have, for example, "Manager" in the Position column.
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Get second child using jQuery
...).next()
And a more elaborated example:
This code gets the text of the 'title' attribute of the 2nd child element of the UL identified as 'my_list':
$('ul#my_list:first-child').next().attr("title")
In this second example, you can get rid of the 'ul' at the start of the selector, as it's redu...
API Versioning for Rails Routes
...s going to blow your mind.
The Rails 3 routing API is super wicked. To write the routes for your API, as per your requirements above, you need just this:
namespace :api do
namespace :v1 do
resources :users
end
namespace :v2 do
resources :users
end
match 'v:api/*path', :to =>...
What is the memory consumption of an object in Java?
Is the memory space consumed by one object with 100 attributes the same as that of 100 objects, with one attribute each?
12...
How to load local script files as fallback in cases where CDN are blocked/unavailable? [duplicate]
... you can check for existence any variable/function this script defines, if it is undefined - then cdn failed and you need to load local script copy.
On this principle are based solutions like that:
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js"></script>
<s...
What is a “web service” in plain English?
...about "web services" here on SO, on Wikipedia, Google, etc., and I don't quite understand what they are. What is the plain English definition/description?
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?
...sters/ajax-crawling/
This technique has mostly been supplanted by the ability to use the JavaScript History API that was introduced alongside HTML5. For a URL like www.example.com/ajax.html#!key=value, Google will check the URL www.example.com/ajax.html?_escaped_fragment_=key=value to fetch a non-A...
Can I add a custom attribute to an HTML tag?
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You can amend your !DOCTYPE declaration (i.e. DTD) to allow it, so that the [XML] document will still be valid:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"
[
<!ATTLIST tag myAttri CDATA #IMPLIED>
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Is there any way to git checkout previous branch?
I sort of want the equivalent of cd - for git. If I am in branch master and I checkout foo , I would love to be able to type something like git checkout - to go back to master , and be able to type it again to return to foo .
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How does database indexing work? [closed]
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Why is it needed?
When data is stored on disk-based storage devices, it is stored as blocks of data. These blocks are accessed in their entirety, making them the atomic disk access operation. Disk blocks are structured in much the ...