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How do I add options to a DropDownList using jQuery?

...orting it. What we can do is, create a new select element and then append all options. Once loop is finished, append it to actual DOM object. var myOptions = { val1 : 'text1', val2 : 'text2' }; var _select = $('<select>'); $.each(myOptions, function(val, text) { _select.append( ...
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jQuery AJAX file upload PHP

...ript to look like this: $('#upload').on('click', function() { var file_data = $('#sortpicture').prop('files')[0]; var form_data = new FormData(); form_data.append('file', file_data); alert(form_data); $.ajax({ url: 'uploa...
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How to design a multi-user ajax web application to be concurrently safe

...tes requests, one per second, 5 per second, whatever you regard as an acceptable latency. This can be rather cruel to your infrastructure if you do not configure your (Apache?) and (php?) well enough to be "lightweight" starters. It is desirable to optimize the polling request on the serverside so t...
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How to tell if JRE or JDK is installed

I have one computer that I intentionally installed JDK on. I have another computer with JRE, for, among other things, testing. However, when I got a java application working on this computer, and then tried it on another, it complained that JDK was required. How can I check if JDK was somehow instal...
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How to get indices of a sorted array in Python

... you can get the sorted list and indicies by using zip: sorted_items, sorted_inds = zip(*sorted([(i,e) for i,e in enumerate(my_list)], key=itemgetter(1))) – Charles L. Nov 30 '15 at 2:58 ...
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GitHub pages are not updating

..., but the new article isn't showing up there. When I execute the server locally, a post lives at localhost:4000/posts/the-price-of-inconsistent-code/ . However, when I go to http://maltzj.github.io/posts/the-price-of-inconsistent-code I get a 404. I also added a new file which should live at htt...
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The name 'model' does not exist in current context in MVC3

...ter my first attempt to convert to Razor failed), and this was the problem all along. Thanks! – Brian Donahue Feb 15 '12 at 16:32 3 ...
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Cross-browser testing: All major browsers on ONE machine

... Each site is suffixed by a brief usage guide. Can I use - Browser usage table, based on data from StatCounter and other sources. StatCounter - Statistic: Browser version | Time period: Last month screenshot. W3Counter - View archived reports: January 2012 (Choose the last month). screenshot. Wiki...
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What is the best CSS Framework and are they worth the effort?

...r presentation into your markup. 'div class="span-24"' is no better than a table, you'll have to go back in there and change the markup to affect the layout. And all the frameworks I've seen are based around fixed-pixel floated boxes, making it impossible to create a liquid layout accessible on a wi...
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How can I find the current OS in Python? [duplicate]

... I usually use sys.platform (docs) to get the platform. sys.platform will distinguish between linux, other unixes, and OS X, while os.name is "posix" for all of them. For much more detailed information, use the platform module. Th...