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Animation CSS3: display + opacity

... Not only invisible, but also transparent to events (clicks etc). Not changing display means not reflowing the document, which is a good thing. Most elements that should fade in / out through opacity should probably have fixed or absolute position anyway. – Rasm...
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What is the difference between $(command) and `command` in shell programming?

...nces such as how backslashes are parsed in the backtick/gravemark version, etc. See BashFAQ/082 for several reasons to always prefer the $(...) syntax. Also see the POSIX spec for detailed information on the various differences. ...
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Cannot overwrite model once compiled Mongoose

...an error if the model does not exist, so you can wrap it in a try/catch in order to either get the model, or create it: let users try { users = mongoose.model('users') } catch (error) { users = mongoose.model('users', <UsersSchema...>) } ...
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How do I tell if a regular file does not exist in Bash?

...e - Check for file existence, regardless of type (node, directory, socket, etc.) -f filename - Check for regular file existence not a directory -G filename - Check if file exists and is owned by effective group ID -G filename set-group-id - True if file exists and is set-group-id -k filename - Stick...
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What is considered a good response time for a dynamic, personalized web application? [closed]

...rendering time)? I'm thinking about sites like Facebook, Amazon, MyYahoo, etc. A related question is what is a good response time for a backend service? ...
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removeEventListener on anonymous functions in JavaScript

...eserves the advantages of anonymous functions (not polluting the namespace etc.). – bompf Sep 7 '12 at 10:23 3 ...
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Android file chooser [closed]

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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Django class-based view: How do I pass additional parameters to the as_view method?

... It's worth noting you don't need to override get_object() in order to look up an object based on a slug passed as a keyword arg - you can use the attributes of a SingleObjectMixin https://docs.djangoproject.com/en/1.5/ref/class-based-views/mixins-single-object/#singleobjectmixin # vi...
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How to change XAMPP apache server port?

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URL Fragment and 302 redirects

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