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How do I wait for an asynchronously dispatched block to finish?

...ly even if runSomeLongOperationAndDo: decides that the operation isn't actually long enough to merit threading and runs synchronously instead. share | improve this answer | f...
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What's the proper value for a checked attribute of an HTML checkbox?

We all know how to form a checkbox input in HTML: 8 Answers 8 ...
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throw new std::exception vs throw std::exception

...xceptions is to throw an exception object and to catch it by reference (usually const reference). The C++ language requires the compiler to generate the appropriate code to construct the exception object and to properly clean it up at the appropriate time. Throwing a pointer to a dynamically alloca...
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Why can a function modify some arguments as perceived by the caller, but not others?

... Some answers contain the word "copy" in a context of a function call. I find it confusing. Python doesn't copy objects you pass during a function call ever. Function parameters are names. When you call a function Python binds these parameters to whatever objects you pass (via names in a ...
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How to request a random row in SQL?

... -1 for relying on order by rand() or equivalents in all dbs :|. also mentioned here. – AD7six May 26 '14 at 9:27 21 ...
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Getting reference to the top-most view/window in iOS application

... Usually that will give you the top view, but there's no guarantee that it's visible to the user. It could be off the screen, have an alpha of 0.0, or could be have size of 0x0 for example. It could also be that the keyWindow ha...
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Simple logical operators in Bash

... What you've written actually almost works (it would work if all the variables were numbers), but it's not an idiomatic way at all. (…) parentheses indicate a subshell. What's inside them isn't an expression like in many other languages. It's a l...
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Benefits of inline functions in C++?

...ce and everything had to fit in 100KB of memory) what advantages do they really have today? 14 Answers ...
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How to make the window full screen with Javascript (stretching all over the screen)

... function maxWindow() { window.moveTo(0, 0); if (document.all) { top.window.resizeTo(screen.availWidth, screen.availHeight); } else if (document.layers || document.getElementById) { if (top.window.outerHeight < screen.availHeight || top.wi...
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Python: How to ignore an exception and proceed? [duplicate]

I have a try...except block in my code and When an exception is throw. I really just want to continue with the code because in that case, everything is still able to run just fine. The problem is if you leave the except: block empty or with a #do nothing, it gives you a syntax error. I can't use con...