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MAC addresses in JavaScript

... I concur with all the previous answers that it would be a privacy/security vulnerability if you would be able to do this directly from Javascript. There are two things I can think of: Using Java (with a signed applet) Using signed Javasc...
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Difference between Destroy and Delete

... Basically destroy runs any callbacks on the model while delete doesn't. From the Rails API: ActiveRecord::Persistence.delete Deletes the record in the database and freezes this instance to reflect that no changes should be ...
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How do I make a checkbox required on an ASP.NET form?

...eyScott Ivey 37.7k1818 gold badges7575 silver badges115115 bronze badges ...
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Find difference between timestamps in seconds in PostgreSQL

... altermativ 65011 gold badge66 silver badges2020 bronze badges answered Dec 24 '12 at 11:43 Igor RomanchenkoIgor Rom...
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Please explain the exec() function and its family

... Simplistically, in UNIX, you have the concept of processes and programs. A process is an environment in which a program executes. The simple idea behind the UNIX "execution model" is that there are two operations you can do. The first ...
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Clearing intent

My Android app is getting called by an intent that is passing information (pendingintent in statusbar). 20 Answers ...
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Obtain Bundle Identifier programmatically

... pekopeko 11k44 gold badges3030 silver badges4646 bronze badges ...
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How do I test a file upload in rails?

... 110 Searched for this question and could not find it, or its answer on Stack Overflow, but found i...
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How to get jQuery dropdown value onchange event

... power_scriptorpower_scriptor 2,94411 gold badge1212 silver badges1616 bronze badges add a comme...
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Very simple log4j2 XML configuration file using Console and File appender

...n" /> </Console> <File name="MyFile" fileName="all.log" immediateFlush="false" append="false"> <PatternLayout pattern="%d{yyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/> </File> </Appenders> <Loggers> ...