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How do sessions work in Express.js with Node.js?
...server will use to make sure the cookie data hasn't been tampered with, so if you try and change a value the cookie will be invalid)
The session data, as opposed to some frameworks (e.g. Play Framework!) is held on the server, so the cookie is more like a placeholder for the session than a holder of...
Android destroying activities, killing processes
... not be resumed until this method
returns. Followed by either onResume() if the activity returns back to
the front, or onStop() if it becomes invisible to the user.
onStop() Called when the activity is no longer visible to the user, because another activity has been resumed and is covering ...
Undo scaffolding in Rails
...
First, if you have already run the migrations generated by the scaffold command, you have to perform a rollback first.
rake db:rollback
You can create scaffolding using:
rails generate scaffold MyFoo
(or similar), and you can...
How to check if a number is between two values?
In JavaScript, I'm telling the browser to do something if the window size is greater than 500px. I do it like so:
7 Answers...
get size of json object
... with the .length because it keeps returning undefined . Just wondering if I'm using it right:
8 Answers
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Breadth First Vs Depth First
When Traversing a Tree/Graph what is the difference between Breadth First and Depth first? Any coding or pseudocode examples would be great.
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Check if a variable is a string in JavaScript
...// displays "object"
Example from this webpage. (Example was slightly modified though).
This won't work as expected in the case of strings created with new String(), but this is seldom used and recommended against[1][2]. See the other answers for how to handle these, if you so desire.
The Goo...
Makefile variable as prerequisite
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This will cause a fatal error if ENV is undefined and something needs it (in GNUMake, anyway).
.PHONY: deploy check-env
deploy: check-env
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other-thing-that-needs-env: check-env
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check-env:
ifndef ENV
$(error ENV is undefined)
endif
(Note t...
Rails how to run rake task
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If you want to run all the tasks at once make task :all => [:a, :b, :c] and then run rake reklamer:all
– Spike Gronim
Apr 12 '11 at 21:37
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Styling twitter bootstrap buttons
Twitter-Bootstrap buttons are awesomely beautiful. Try them out by scrolling over them
14 Answers
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