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Why is 1/1/1970 the “epoch time”?

... Early versions of unix measured system time in 1/60 s intervals. This meant that a 32-bit unsigned integer could only represent a span of time less than 829 days. For this reason, the time represented by the number 0 (called the epoch) had to be set in the very recent pas...
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Capture iframe load complete event

... you listen to that event is up to you, but generally the best way is to: 1) create your iframe programatically It makes sure your load listener is always called by attaching it before the iframe starts loading. <script> var iframe = document.createElement('iframe'); iframe.onload = functio...
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Running multiple AsyncTasks at the same time — not possible?

I'm trying to run two AsyncTasks at the same time. (Platform is Android 1.5, HTC Hero.) However, only the first gets executed. Here's a simple snippet to describe my problem: ...
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Visual Studio TFS shows unchanged files in the list of pending changes

... answered Nov 4 '11 at 16:18 enablorenablor 80288 silver badges66 bronze badges ...
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Quick and easy file dialog in Python?

... | edited Aug 14 '17 at 7:47 jfs 326k132132 gold badges818818 silver badges14381438 bronze badges ...
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How to turn off INFO logging in Spark?

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Bootstrap throws Uncaught Error: Bootstrap's JavaScript requires jQuery [closed]

...trying to use Bootstrap to make an interface for a program. I added jQuery 1.11.0 to the <head> tag and thought that was that, but when I launch the web page in a browser jQuery reports an error: ...
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Can't pickle when using multiprocessing Pool.map()

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Ruby convert Object to Hash

Let's say I have a Gift object with @name = "book" & @price = 15.95 . What's the best way to convert that to the Hash {name: "book", price: 15.95} in Ruby, not Rails (although feel free to give the Rails answer too)? ...
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C++ templates that accept only certain types

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