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How do I clear all options in a dropdown box?

My code works in IE but breaks in Safari, Firefox, and Opera. (big surprise) 27 Answers ...
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How do I get Gridview to render THEAD?

... I found there was still problems during postback and placed the code in the databound event which addressed all scenarios. – James Westgate Jun 10 '15 at 8:12 ...
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How to host google web fonts on my own server?

...p://fonts.googleapis.com/css?family=Cantarell:400,700,400italic,700italic|Candal It links to a CSS defining the fonts via a bunch of @font-face defintions. Open it in a browser to copy and paste them into your own CSS and modify the urls to include the right font file and format types. So this: ...
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Merge multiple lines (two blocks) in Vim

I'd like to merge two blocks of lines in Vim, i.e. take lines n..m and append them to lines a..b . If you prefer a pseudocode explanation: [a[i] + b[i] for i in min(len(a), len(b))] ...
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Two versions of python on linux. how to make 2.7 the default

...'t actually want to change your default Python. Your distro installed a standard system Python in /usr/bin, and may have scripts that depend on this being present, and selected by #! /usr/bin/env python. You can usually get away with running Python 2.6 scripts in 2.7, but do you want to risk it? O...
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Centering a background image, using CSS

...ter center; That should work. If not, why not make a div with the image and use z-index to make it the background? This would be much easier to center than a background image on the body. Other than that try: background-position: 0 100px;/*use a pixel value that will center it*/ Or I think you ...
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How do I get the number of elements in a list?

...n can be used with several different types in Python - both built-in types and library types. For example: >>> len([1,2,3]) 3 Official 2.x documentation is here: len() Official 3.x documentation is here: len() sh...
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How can I fill a div with an image while keeping it proportional?

... If I correctly understand what you want, you may leave the width and height attributes off the image to maintain aspect ratio and use flexbox to do the centering for you. .fill { display: flex; justify-content: center; align-it...
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Big-oh vs big-theta [duplicate]

... Big-O is an upper bound. Big-Theta is a tight bound, i.e. upper and lower bound. When people only worry about what's the worst that can happen, big-O is sufficient; i.e. it says that "it can't get much worse than this". The tighter the bound the better, of course, but a tight bound isn't...
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How do I find the stack trace in Visual Studio?

... would be nice for it to show the callers of the objects that throws an unhandled exception. Is there a hidden option to make it useful? Perhaps you can expand on your answer to provide examples. – James Jan 16 '15 at 16:43 ...