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How long do browsers cache HTTP 301s?

...n attempt to avoid a redirect loop. Comments on this answer indicate this now works in all major browsers - but there may be some minor browsers where it doesn't. If you don't have control over the site where the previous redirect target went to, then you are out of luck. Try and beg the site own...
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Are “while(true)” loops so bad? [closed]

I've been programming in Java for several years now, but I just recently returned to school to get a formal degree. I was quite surprised to learn that, on my last assignment, I lost points for using a loop like the one below. ...
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What are metaclasses in Python?

...try.register(self, self.interfaces) print "Would register class %s now." % self def __add__(self, other): class AutoClass(self, other): pass return AutoClass # Alternatively, to autogenerate the classname as well as the class: # return type(se...
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Is it possible to hide extension resources in the Chrome web inspector network tab?

...e solution I was after (I'd have preferred a global setting), but there is now a way to filter out requests from extensions, as mentioned by a commenter on the issue I originally opened. In the network tab filter box, enter the string -scheme:chrome-extension (as shown below): This is case-sensi...
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Finding the max value of an attribute in an array of objects

... also it's good to know that it returns -Infinity (a truthy value) for an empty array – icl7126 Nov 6 '16 at 13:08 1 ...
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How to get the absolute coordinates of a view

... Now that's the kind of function I expected to find. Unfortunately, I must not be using it properly. I realise it was a known bug that getLocationOnScreen gives a null pointer exception in Android v1.5 (the platform I'm coding...
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How can I generate a list or array of sequential integers in Java?

... The API now requires code similar to this: ContiguousSet.create(Range.closed(1, count), DiscreteDomain.integers() – Ben Aug 3 '14 at 17:37 ...
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I can’t find the Android keytool

...r your certificate's MD5 fingerprint. Wtf is that, you might say. I don't know, but just do what I say and your Android app doesn't get hurt. Go to Start>Run and type cmd to open up a command prompt. You need to navigate to the directory with the keytool.exe file, which might be in a slightly di...
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What's the difference between utf8_general_ci and utf8_unicode_ci?

...Unicode 9.0 - and with no equivalent _general variant. People reading this now should probably use one of these newer collations instead of either _unicode or _general. Much of what's written below is not of much interest anymore if you can use one of the newer collations instead. Key differences u...
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How to 'insert if not exists' in MySQL?

...EY (`ensembl_transcript_id`) ) ENGINE=InnoDB DEFAULT CHARSET=latin1; Now imagine that we have an automatic pipeline importing transcripts meta-data from Ensembl, and that due to various reasons the pipeline might be broken at any step of execution. Thus, we need to ensure two things: ...