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File upload progress bar with jQuery

...ly client sided. This shows the amount of data uploaded by the client, not what's received by the server. So, be sure to display the final 'success' message only after the end of the complete ajax request. – BlackPanther Aug 4 '15 at 6:12 ...
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Finding the source code for built-in Python functions?

...n python? I don't mean just how to use them, but also how were they built, what is the code behind sorted or enumerate etc...? ...
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Access parent URL from iframe

Okay, I have a page on and on this page I have an iframe. What I need to do is on the iframe page, find out what the URL of the main page is. ...
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What is the difference between varchar and nvarchar?

...nd you can always validate that your data is restricted to 7-bit ASCII for whatever legacy system you're having to maintain, even while enjoying some of the benefits of full Unicode storage. share | ...
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pandas: multiple conditions while indexing data frame - unexpected behavior

...m. That's right. Remember that you're writing the condition in terms of what you want to keep, not in terms of what you want to drop. For df1: df1 = df[(df.a != -1) & (df.b != -1)] You're saying "keep the rows in which df.a isn't -1 and df.b isn't -1", which is the same as dropping every ...
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Why both no-cache and no-store should be used in HTTP response?

... is intended to prevent storage of the representation in any form of cache whatsoever. I say whatsoever, but note this in the RFC 2616 HTTP spec: History buffers MAY store such responses as part of their normal operation But this is omitted from the newer RFC 7234 HTTP spec in potentially an ...
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C# catch a stack overflow exception

... If it can't be caught... Why doesn't the windows event explaining what happened include the full stack trace by default? – user645280 Mar 21 '14 at 14:34 11 ...
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Does Java support default parameter values?

... @JarrodRoberson: Nice, looking forward to it! What I wanted to communicate: as a reader of your blog, a 50 line example with a brief text description of what's going on would help me more than 300 lines without context. – Christian Aichinger ...
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You have already activated X, but your Gemfile requires Y

... Using bundle exec is the right way to do this. Basically what's happening is that you've updated rake to 0.9.2 which now conflicts with the version specified in your Gemfile. Previously the latest version of rake you had matched the version in your Gemfile, so you didn't get any wa...
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How to remove unused imports in Intellij IDEA on commit?

... that is what the second option for "Add unambiguous imports on the fly" is for :) You can disable the first and only enable the unambiguous setting. – matt b Sep 25 '12 at 14:44 ...