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What does the tilde (~) mean in my composer.json file?
.... In your case, it is equivalent to >= 2.0, < 3.0.
The full explanation is at Tilde Version Range docs page:
The ~ operator is best explained by example: ~1.2 is equivalent to >=1.2 <2.0.0, while ~1.2.3 is equivalent to >=1.2.3 <1.3.0.
Another way of looking at it is that...
Retrieve the position (X,Y) of an HTML element relative to the browser window
I want to know how to get the X and Y position of HTML elements such as img and div in JavaScript relative to the browser window.
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Difference between jQTouch and jQuery mobile
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Additionally to Aaron's answer this is what I've come up with so far:
jQuery Mobile is an offical and generally more active jQuery project (alpha 4.1 - April 7, 2011) whereas jQTouch, created in 2009 by David Kaneda, has been re...
Reading InputStream as UTF-8
... I’m pretty sure that form of the constructor won’t raise an exception on invalid input. You need to use the with a CharsetDecoder dec argument. This is same Java design bug that the OutputStreamWriter constructors have: only one of the four actually condescends to tell you when something g...
Notification when a file changes?
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That would be System.IO.FileSystemWatcher.
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Serialize an object to string
...le code that motivate this statement, with XmlSerializer throwing an Exception when typeof(T) is used, because you pass an instance of a derived type to a method that calls SerializeObject that is defined in the derived type's base class: http://ideone.com/1Z5J1.
Also, Ideone uses Mono to execute c...
FileSystemWatcher Changed event is raised twice
I have an application where I am looking for a text file and if there are any changes made to the file I am using the OnChanged eventhandler to handle the event. I am using the NotifyFilters.LastWriteTime but still the event is getting fired twice. Here is the code.
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Allowed characters in Linux environment variable names
...names? My cursory search of man pages and the web did only produce information about how to work with variables, but not which names are allowed.
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Popstate on page's load in Chrome
...e page and use history.pushState() in order to update the browser's location bar without page reload. Then, of course, I use window.popstate in order to restore previous state when back-button is clicked.
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Move assignment operator and `if (this != &rhs)`
...tance, suppose someone tried to write an operator+ function, and utilize a mix of rvalue references and lvalue references in order to "prevent" extra temporaries from being created during some stacked addition operation on the object-type:
struct A; //defines operator=(A&& rhs) where it wil...