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How does variable assignment work in JavaScript?

...perty of an existing object. In the second example, you are assigning a brand new object. a = b = {}; a and b are now pointers to the same object. So when you do: a.foo = 'bar'; It sets b.foo as well since a and b point to the same object. However! If you do this instead: a = 'bar'; you...
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Android emulator freezing OS X v10.9 (Mavericks) with HAXM

I just updated to OS X v10.9 (Mavericks), and now whenever I start up any of my emulators, as soon as the emulator starts up, my entire computer freezes with a spinning progress indicator in the center of the screen (not a beachball, the progress indicator is similar to what you see when shutting...
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Why does CSS not support negative padding?

...g might help the development of CSS of certain page elements become better and easier. Yet, there is no provision for a negative padding in the W3C CSS. What is the reason behind this? Is there any obstruction to the property that prevents it's use as such? Thanks for your answers. ...
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What columns generally make good indexes?

As a follow up to " What are indexes and how can I use them to optimise queries in my database? " where I am attempting to learn about indexes, what columns are good index candidates? Specifically for an MS SQL database? ...
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How to filter SQL results in a has-many-through relation

Assuming I have the tables student , club , and student_club : 13 Answers 13 ...
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What's the difference between xsd:include and xsd:import?

What's the difference between xsd:include and xsd:import ? When would you use one instead of the other, and when might it not matter? ...
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Notepad++ Multi editing

... Yes: simply press and hold the Alt key, click and drag to select the lines whose columns you wish to edit, and begin typing. You can also go to Settings > Preferences..., and in the Editing tab, turn on multi-editing, to enable selection o...
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How to urlencode data for curl command?

I am trying to write a bash script for testing that takes a parameter and sends it through curl to web site. I need to url encode the value to make sure that special characters are processed properly. What is the best way to do this? ...
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Text size and different android screen sizes

...ll find how there suggesting for using dimens.xml for different devices of android for Example see Below structure : res/values/dimens.xml res/values-small/dimens.xml res/values-normal/dimens.xml res/values-large/dimens.xml res/values-xlarge/dimens.xml for Example you have used below dimens.x...
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Shortest distance between a point and a line segment

I need a basic function to find the shortest distance between a point and a line segment. Feel free to write the solution in any language you want; I can translate it into what I'm using (Javascript). ...