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How to empty/destroy a session in rails?
...in a controller.
reset_session
Here's the documentation on this method: http://api.rubyonrails.org/classes/ActionController/Base.html#M000668
Resets the session by clearing out all
the objects stored within and
initializing a new session object.
Good luck!
...
Remove scroll bar track from ScrollView in Android
...llbar from a view (and its subclass) via xml:
android:scrollbars="none"
http://developer.android.com/reference/android/view/View.html#attr_android:scrollbars
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Understanding keystore, certificates and alias
...be the same as for
the cloned entry's private key).
More information:
http://download.oracle.com/javase/1.5.0/docs/tooldocs/solaris/keytool.html
http://developer.android.com/guide/publishing/app-signing.html
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How do ports work with IPv6?
...e as today. However, be sure you include [] around your IP.
For example : http://[1fff:0:a88:85a3::ac1f]:8001/index.html
Wikipedia has a pretty good article about IPv6: http://en.wikipedia.org/wiki/IPv6#Addressing
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What is the difference between jQuery's mouseout() and mouseleave()?
...n the mouse leaves the Outer element, but not the Inner element.
Source: http://api.jquery.com/mouseleave/
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Position absolute but relative to parent
...you want to understand that difference refer to this example
Example 1::
http://jsfiddle.net/Cr9KB/1/
#mainall
{
background-color:red;
height:150px;
overflow:scroll
}
Here parent class has no position so element is placed according to body.
Example 2::
http://jsfiddle.net/Cr9K...
What is the difference between OpenID and SAML?
...users initiate the authentication. With OpenID, a user login is usually an HTTP address of the resource which is responsible for the authentication. On the other hand, SAML is based on an explicit trust between your site and the identity provider so it's rather uncommon to accept credentials from an...
How do you sort a list in Jinja2?
... to sort by:
{% for movie in movie_list|sort(attribute='rating') %}
See http://jinja.pocoo.org/docs/templates/#sort
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AngularJS changes URLs to “unsafe:” in extension page
... add URL protocols to Angular's whitelist using a regular expression. Only http, https, ftp and mailto are enabled by default. Angular will prefix a non-whitelisted URL with unsafe: when using a protocol such as chrome-extension:.
A good place to whitelist the chrome-extension: protocol would be in...
Container-fluid vs .container
...hard to explain so lets look at the examples
Example one
container-fluid:
http://www.bootply.com/119981
So you see how the container takes up the whole screen...that's a container-fluid.
Now lets look at the other just a normal container and watch the edges of the preview
Example two
container
http...