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Difference between var_dump,var_export & print_r

...42")} } print_r is for debugging purposes, too, but does not include the member's type. It's a good idea to use if you know the types of elements in your array, but can be misleading otherwise. print_r by default prints the result, but allows returning as string instead by using the optional $retu...
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Non-static method requires a target

...urs when you use a variable in a lambda which is a null-reference at run-time. In your case, I would check if your variable calculationViewModel is a null-reference. Something like: public ActionResult MNPurchase() { CalculationViewModel calculationViewModel = (CalculationViewModel)TempData["c...
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Why should I avoid std::enable_if in function signatures

Scott Meyers posted content and status of his next book EC++11. He wrote that one item in the book could be "Avoid std::enable_if in function signatures" . ...
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Why is it impossible to build a compiler that can determine if a C++ function will change the value

... Why is it impossible to build such a compiler? For the same reason that you can't write a program that will determine whether any given program will terminate. This is known as the halting problem, and it's one of those things that's not computable. To be clear, you can write a co...
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Platform independent size_t Format specifiers in c?

... Right, so in this case, you should be using %zu, because the argument is unsigned. – caf Jan 24 '10 at 23:03 ...
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Bash script - variable content as a command to run

I have a Perl script that gives me a defined list random numbers that correspond to the lines of a file. Next I want to extract those lines from the file using sed . ...
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How to run Maven from another directory (without cd to project dir)?

Supposing my maven project is located in /some/location/project and my current location is /another/location/ how can I run maven build without changing to project location cd /some/location/project ? ...
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Chrome/jQuery Uncaught RangeError: Maximum call stack size exceeded

...g the error "Uncaught RangeError: Maximum call stack size exceeded" on chrome. here is my jQuery function 6 Answers ...
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Why is $$ returning the same id as the parent process?

...ocess ID of the parent in a subshell; from the man page under "Special Parameters": $ Expands to the process ID of the shell. In a () subshell, it expands to the process ID of the current shell, not the subshell. In bash 4, you can get the process ID of the child with BASHPID. ~ $ echo...
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Gulp.js task, return on src?

I'm new to gulp and have been looking through example set-ups. Some people have the following structure: 3 Answers ...