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How to generate a random alpha-numeric string?

... be used for session identifiers/keys since an attacker can easily predict what the generated session identifiers are at any given time. – Inshallah Sep 26 '12 at 10:14 37 ...
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Can't append element

...ting and then moving around the DOM. The next thing is, I'll summarize what's the bad news by using .append() function to add a script. And The Bad News is.. You can't debug your code. I'm not joking, even if you add debugger; keyword between the line you want to set as breakpoint, you'll b...
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Comparing arrays in JUnit assertions, concise built-in way?

... What stinks about that though is you get NO data about what went wrong when it fails. – mBria Nov 19 '10 at 18:57 ...
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Multiple Inheritance in C#

...mplex" MI is a useful concept, the un-answered questions are ones like:- "What do you do when you have multiple common base classes in the different superclasses? Perl is the only language I've ever worked with where MI works and works well. .Net may well introduce it one day but not yet, the CLR ...
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Getting all selected checkboxes in an array

... and what to do if uncheck check box, to remove value from array – Jubin Patel Jun 7 '13 at 10:38 ...
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Is there any way to call a function periodically in JavaScript?

... often not the best solution for periodic execution - It really depends on what javascript you're actually calling periodically. eg. If you use setInterval() with a period of 1000ms and in the periodic function you make an ajax call that occasionally takes 2 seconds to return you will be making an...
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Is floating point math broken?

.... A fairly comprehensive treatment of floating-point arithmetic issues is What Every Computer Scientist Should Know About Floating-Point Arithmetic. For an easier-to-digest explanation, see floating-point-gui.de. Side Note: All positional (base-N) number systems share this problem with precision ...
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Multiple linear regression in Python

... @HuanianZhang what do you mean by confidence level? If you want the coefficient of determination, the score method will do it; sklearn.metrics has some other model evaluation criteria. If you want the stuff like in Akavall's answer, statsm...
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how to read all files inside particular folder

...hy can more people not give this? It can be so annoying to attempt to find what people are talking about – user001 Nov 30 '15 at 11:03 1 ...
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What's the difference between IQueryable and IEnumerable

... to .Net, I know I can query IEnumerables using the Linq extensions. So what is this IQueryable and how does it differ? ...