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How to compare strings in Bash

... true. ( [ "$x" == "valid" ] && echo "valid" ) || echo "invalid" Now, when it is evaluated, the first is checked. If it is false, than the second operand of the logic and && after it is not relevant. The first is not true, so it can not be the first and the second be true, anyway. ...
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hasNext in Python iterators?

... @Giorgio, there is no way to know whether another element exists without executing the code that generates it (you don't know whether the generator will execute yield or not). It is, of course, not difficult to write an adaptor that stores the result of n...
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How should I have explained the difference between an Interface and an Abstract class?

...implementation of this only: public abstract void checkDBforUser(); } Now in each child class, we only need to implement one method - the method that is database dependent. share | improve thi...
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There is already an open DataReader associated with this Command which must be closed first

... I have had this error so many times now... and every time I forget! The answer to the question is always to use ToList(). – Cheesus Toast Jul 21 '15 at 19:24 ...
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How to make tinymce paste in plain text by default

... ed.pasteAsPlainText = true; }); } } So now it always will be plain. share | improve this answer | follow | ...
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What use is find_package() if you need to specify CMAKE_MODULE_PATH anyway?

I'm trying to get a cross-plattform build system working using CMake. Now the software has a few dependencies. I compiled them myself and installed them on my system. ...
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outline on only one border

...nset border into an HTML element, but just only on one side of it. Until now, I've been using an image to do that (GIF/PNG) that I would then use as a background and stretch it (repeat-x) and position a little off from the top of my block. Recently, I discovered the outline CSS property, which i...
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Visual Studio 2012 - Intellisense sometimes disappearing / broken

My colleagues and I are using VS2012 for some weeks now. Sometimes after working several hours the intellisense is broken. After closing all open tabs it works again. ...
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Finish an activity from another activity

...ect like this, public static Activity fa; onCreate() { fa = this; } now use that object in another Activity to finish first-activity like this, onCreate() { FirstActivity.fa.finish(); } SECOND WAY While calling your activity FirstActivity which you want to finish as soon as you move o...
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Converting a Java collection into a Scala collection

... a more explicit way (using JavaConverters), which seems to be recommended now. share | improve this answer | follow | ...