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list.clear() vs list = new ArrayList(); [duplicate]

...verage size is lower, it might be faster to make a new ArrayList. http://www.docjar.com/html/api/java/util/ArrayList.java.html public void clear() { modCount++; // Let gc do its work for (int i = 0; i < size; i++) elementData[i] = null; size = 0; } ...
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Clear icon inside input text

...rable__clear">×</i> </span> <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> Using only a <input class="clearable" type="text"> (No additional elements) set a class="clearable" and play with it's backg...
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Targeting only Firefox with CSS

...html> ff.xml <?xml version="1.0"?> <bindings xmlns="http://www.mozilla.org/xbl"> <binding id="load-mozilla-css"> <implementation> <constructor> <![CDATA[ var link = document.createElement("link"); ...
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How to convert local time string to UTC?

...tetime.fromtimestamp(1571595618.0, tz=timezone.utc) for details see: see: https://blog.ganssle.io/articles/2019/11/utcnow.html original answer (from 2010): The datetime module's utcnow() function can be used to obtain the current UTC time. >>> import datetime >>> utc_datetime = da...
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How to create an installer for a .net Windows Service using Visual Studio

.... This will give you additional Visual Studio Installer project templates. https://marketplace.visualstudio.com/items?itemName=VisualStudioProductTeam.MicrosoftVisualStudio2017InstallerProjects#overview To install the windows service you can add a new setup wizard type project and follow the steps ...
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Mongod complains that there is no /data/db folder

...ere to better understand the meaning of the directory permissions: http://www.perlfect.com/articles/chmod.shtml Maybe also check out one of the tutorials you can find via Google: "UNIX for beginners" share | ...
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Algorithm to detect overlapping periods [duplicate]

... There is a wonderful library with good reviews on CodeProject: http://www.codeproject.com/Articles/168662/Time-Period-Library-for-NET That library does a lot of work concerning overlap, intersecting them, etc. It's too big to copy/paste all of it, but I'll see which specific parts which can be...
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Rails 4: assets not loading in production

...ooks like this: location ~ ^/(assets|images|fonts)/(.*)$ { alias /var/www/foster_care/current/public/$1/$2; gzip on; expires max; add_header Cache-Control public; } share | improv...
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ActionBarCompat: java.lang.IllegalStateException: You need to use a Theme.AppCompat

... using Theme.AppCompat (res/values/themes.xml). This is the phone: http://www.gsmarena.com/samsung_galaxy_y_s5360-4117.php ...
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Find merge commit which include a specific commit

...nt if ($seen{$_} .= @ARGV) =~ /10$/' file1 file2 (perl code from http://www.cyberciti.biz/faq/command-to-display-lines-common-in-files/ , which took it from "someone at comp.unix.shell news group"). See process substitution if you want to make it a one-liner. ...