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How to upgrade rubygems

I need to upgrade gems to 1.8 i tried installing the respective debian packages but it seems its not getting upgraded 8 An...
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Express: How to pass app-instance to routes from a different file?

I want to split up my routes into different files, where one file contains all routes and the other one the corresponding actions. I currently have a solution to achieve this, however I need to make the app-instance global to be able to access it in the actions. My current setup looks like this: ...
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Making a mocked method return an argument that was passed to it

...entAt(0, Bar.class)). And you can just as well use a method reference and call real method. – Paweł Dyda Jan 29 '15 at 13:17 ...
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Default string initialization: NULL or Empty? [closed]

... Distinguishing between NULL and empty is great when there is actually a difference between the two. There are many cases, though, where there is not a difference, and thus having two ways of representing the same thing is a liability. – Greg Smalter ...
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avoid page break inside row of table

...at you pointed out above - they have a unique display style, which doesn't allow for these CSS rules. However, the <td> and <th> tags within them usually do allow this kind of specification - and you can easily apply such rules to ALL child-<tr>'s and <td>'s using CSS as show...
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Why does (1 in [1,0] == True) evaluate to False?

... Python actually applies comparison operator chaining here. The expression is translated to (1 in [1, 0]) and ([1, 0] == True) which is obviously False. This also happens for expressions like a < b < c which translate to (...
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Architecture of a single-page JavaScript web application?

...x single-page JS web application be structured on the client-side? Specifically I'm curious about how to cleanly structure the application in terms of its model objects, UI components, any controllers, and objects handling server persistence. ...
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Android: AutoCompleteTextView show suggestions when no text entered

...old is less than or equals 0, a threshold of 1 is applied. You can manually show the drop-down via showDropDown(), so perhaps you can arrange to show it when you want. Or, subclass AutoCompleteTextView and override enoughToFilter(), returning true all of time. ...
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Is there a “previous sibling” selector?

... I found a way to style all previous siblings (opposite of ~) that may work depending on what you need. Let's say you have a list of links and when hovering on one, all the previous ones should turn red. You can do it like this: /* default lin...
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Press alt + numeric in bash and you get (arg [numeric]) what is that?

...hat is significant. If you pass a negative argument to a command which normally acts in a forward direction, that command will act in a backward direction. For example, to kill text back to the start of the line, you might type 'M-- C-k'. The general way to pass numeric arguments to a command is to ...