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What is a NullPointerException, and how do I fix it?

...e a valid point. It's difficult on the internet to really judge where someone is at, and at what level it's safe to start an explanation. I'll try revising this again. – Bill the Lizard Feb 20 '09 at 4:32 ...
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How to show loading spinner in jQuery?

... That's probably too global for one simple load into a DIV. – montrealist Jul 29 '09 at 17:05 367 ...
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Difference Between ViewResult() and ActionResult()

...o the exact same thing. The only difference is that with the ActionResult one, your controller isn't promising to return a view - you could change the method body to conditionally return a RedirectResult or something else without changing the method definition. ...
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Insert Update trigger how to determine if insert or update

...t, Update Trigger on table A which will delete all rows from table B whose one column (say Desc) has values like the value inserted/updated in the table A's column (say Col1). How would I go around writing it so that I can handle both Update and Insert cases. How would I determine if the trigger is ...
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vim, switching between files rapidly using vanilla Vim (no plugins)

...nkfully, you get tab-completion and wildcards: the classic * and a special one, **, which stands for "any subdirectory". Combining all of that, you can do: :e **/*foo<Tab> to choose from all the files containing foo in their name under the working directory or: :e **/*foo/*bar<Tab> ...
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?

...efix tree what are the discriminating factors that would lead me to choose one over the other. From my own naive point of view it seems as though using a trie has some extra overhead since it isn't stored as an array but that in terms of run time (assuming the longest key is the longest english word...
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Sphinx autodoc is not automatic enough

... Even sphinx-apidoc is pretty rudimentary. For a package with one or two modules, it works okay, but we've got modules nested deeply, and sphinx-apidoc produces some pretty unmanageable output. – slacy Apr 27 '12 at 20:35 ...
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Do sealed classes really offer performance Benefits?

...ze on the algorithmic level before you optimize on the code-level. Here's one link mentioning this: Rambling on the sealed keyword share | improve this answer | follow ...
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Asynchronous Process inside a javascript for loop [duplicate]

...t called when those async operations finish. As such, the loop index is "done" and sitting at its final value for all the callbacks. To work around this, you have to uniquely save the loop index separately for each callback. In Javascript, the way to do that is to capture it in a function closure...
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Find where python is installed (if it isn't default dir)

...y -2 or py -3 for example, since 'which python' will probably display only one – GuiFGDeo Jul 2 '18 at 16:49 add a comment  |  ...