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What are the typical reasons Javascript developed on Firefox fails on IE? [closed]

I developed some javascript enhanced pages that run fine on recent Firefox and Safari. I missed to check in Internet Explorer, and now I find the pages don't work on IE 6 and 7 (so far). The scripts are somehow not executed, the pages show as if javascript wasn't there, although some javascript is e...
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RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()

What is the conceptual difference between forward() and sendRedirect() ? 9 Answers ...
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How to update Python?

... 2012. I can't find any consensus on whether I should completely uninstall and wipe this version before putting on the latest version. ...
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How important is the order of columns in indexes?

... Also keep in mind, suppose your Index is like the picture above, and your query filters on column1 and column2, but column2 is more unique and what you really want to filter on is actually column2, then its more beneficial to just have a index where column 2 is first. This may seem counte...
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How do cache lines work?

I understand that the processor brings data into the cache via cache lines, which - for instance, on my Atom processor - brings in about 64 bytes at a time, whatever the size of the actual data being read. ...
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What is Mocking?

...-memory structure for storing records. The object under test can then read and write records to the database stub to allow it to execute the test. This could test some behavior of the object not related to the database and the database stub would be included just to let the test run. If you instead ...
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When is the thread pool used?

So I have an understanding of how Node.js works: it has a single listener thread that receives an event and then delegates it to a worker pool. The worker thread notifies the listener once it completes the work, and the listener then returns the response to the caller. ...
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“On-line” (iterator) algorithms for estimating statistical median, mode, skewness, kurtosis?

Is there an algorithm to estimate the median, mode, skewness, and/or kurtosis of set of values, but that does NOT require storing all the values in memory at once? ...
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What XML parser should I use in C++? [closed]

I have XML documents that I need to parse and/or I need to build XML documents and write them to text (either files or memory). Since the C++ standard library does not have a library for this, what should I use? ...
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How exactly does __attribute__((constructor)) work?

...nguish them from function calls. GCC-specific syntax. Yes, this works in C and C++. No, the function does not need to be static. The destructor runs when the shared library is unloaded, typically at program exit. So, the way the constructors and destructors work is that the shared object file cont...