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CSS Image size, how to fill, not stretch?

...h: 150px; height: 100px; background-image: url("http://i.stack.imgur.com/2OrtT.jpg"); background-size: cover; background-repeat: no-repeat; background-position: 50% 50%; } <div class="container"></div>​ While cover will give you a scaled up image, contain will g...
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npm command to uninstall or prune unused packages in Node.js

...e to remove modules not listed in package.json. From npm help prune: This command removes "extraneous" packages. If a package name is provided, then only packages matching one of the supplied names are removed. Extraneous packages are packages that are not listed on the parent package's dependenci...
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How can I combine hashes in Perl?

What is the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible. ...
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How to send a JSON object using html form data

... Get complete form data as array and json stringify it. var formData = JSON.stringify($("#myForm").serializeArray()); You can use it later in ajax. Or if you are not using ajax; put it in hidden textarea and pass to server. If ...
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How to reduce iOS AVPlayer start delay

... haven't hit those yet. I got the idea for it from: https://stackoverflow.com/a/50598525/9620547 share | improve this answer | follow | ...
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What exactly is Python's file.flush() doing?

... Addendum in 2018. Note that disks with cache mechanisms is now much more common than back in 2013, so now there are even more levels of caching and buffers involved. I assume these buffers will be handled by the sync/flush calls as well, but I don't really know. ...
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How do I check the difference, in seconds, between two dates?

... if you want to compute differences between two known dates, use total_seconds like this: import datetime as dt a = dt.datetime(2013,12,30,23,59,59) b = dt.datetime(2013,12,31,23,59,59) (b-a).total_seconds() 86400.0 #note that seconds ...
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Is it possible to rename a maven jar-with-dependencies?

...cution> </executions> </plugin> Update: based on your comments, using the built-in descriptor won't work . I believe this is down to a bug in the recent versions of the assembly-plugin - they've removed support for classifiers, but the id is fixed if you use a built-in descripto...
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HTML.ActionLink vs Url.Action in ASP.NET Razor

... @Shimmy, you can read about it here: haacked.com/archive/2009/11/17/aspnetmvc2-render-action.aspx – Darin Dimitrov Dec 20 '12 at 6:36 4 ...
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Prevent BODY from scrolling when a modal is opened

...ing when using the mousewheel while the Modal (from http://twitter.github.com/bootstrap ) on my website is opened. 41 Answ...