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How to get the first element of an array?

...x of 0. You know what they say about assumption... – Andy Aug 9 '15 at 16:19 16 @Andy There were...
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Canvas width and height in HTML5

Is it possible to fix the width and height of an HTML5 canvas element? 4 Answers 4 ...
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How to get start and end of day in Javascript?

How to get start ( 00:00:00 ) and end ( 23:59:59 ) of today in timestamp ( GMT )? Computer use a local time. 7 Answers ...
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What is the role of the bias in neural networks? [closed]

I'm aware of the gradient descent and the back-propagation algorithm. What I don't get is: when is using a bias important and how do you use it? ...
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JavaScript: Check if mouse button down?

...what button is pressed, be prepared to make mouseDown an array of counters and count them separately for separate buttons: // let's pretend that a mouse doesn't have more than 9 buttons var mouseDown = [0, 0, 0, 0, 0, 0, 0, 0, 0], mouseDownCount = 0; document.body.onmousedown = function(evt) { ...
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Fast stable sorting algorithm implementation in javascript

...oking to sort an array of about 200-300 objects, sorting on a specific key and a given order (asc/desc). The order of results must be consistent and stable. ...
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WAMP/XAMPP is responding very slow over localhost

...know what the problem is. WAMP was very slow, so I reformatted my computer and installed WAMP. Still, accessing localhost is very, very slow, and sometimes it doesn't even load at all. I even removed it and replaced it with XAMPP, but I still got the same result. What might possibly be the problem? ...
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How to resize a VirtualBox vmdk file

I've run out of space on a virtual machine disk which is a vmdk and need to resize the virtual image. Resizing with the command ...
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Getting key with maximum value in dictionary?

...b':3000, 'c': 100} max(stats.iteritems(), key=operator.itemgetter(1))[0] And instead of building a new list in memory use stats.iteritems(). The key parameter to the max() function is a function that computes a key that is used to determine how to rank items. Please note that if you were to have ...
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Why are hexadecimal numbers prefixed with 0x?

Why are hexadecimal numbers prefixed as 0x ? I understand the usage of the prefix but I don't understand the significance of why 0x was chosen. ...