You are directly calling it. document.getElementById(“main_btn”).addEventListener(“click”, hideId(“main”); You should do that in a callback. document.getElementById(“main_btn”).addEventListener(“click”, function (){ hideId(“main”); });
You could down cast the base class pointer to the derived class and call the function. Base* obj = new Derived; Derived* d = static_cast<Derived*>( obj ); d->doSomething(); Since doSomething() is not declared virtual, you should get the derived implementation.
I think a top reason for avoiding this is that it hides dependencies. Your functions get_data and run_html do not advertise in any way that they share data, and yet they do, in a big way. And there is no way (short of reading the code) to know that run_html will be useless if get_data … Read more
The asterisk belongs to the return type, and not to the function name, i.e.: void* func_name(void *param) { . . . . . } It means that the function returns a void pointer.
If you want your function to always be available, without including it, do this: Create your function in a PHP file. In your php.ini file, search for the option auto_prepend_file and add your PHP file to that line, like this: `auto_prepend_file = “/path/to/my_superglobal_function.php”` Or if you write it with a non absolute path, like this: … Read more
sort(my_list_of_objects, key=my_number_giving_function) same for sorted, see the Python Sorting HOWTO
I think you are looking for call_user_func. An example from the PHP Manual: <?php function barber($type) { echo “You wanted a $type haircut, no problem”; } call_user_func(‘barber’, “mushroom”); call_user_func(‘barber’, “shave”); ?>
— UPDATE: You should never actually need to use this function. Sass math is very smart about units, and I have never seen a use-case in which stripping units was a better option than simply using correct math to get what you need. See the Sass issue thread where this has been discussed at length. … Read more
It’s a constraint violation, and your compiler should diagnose it. If it compiles it in spite of that, your program has undefined behaviour [thanks to @Steve Jessop for the clarification of the failure mode, and see @Michael Burr’s answer for why some compilers allow this]: From C11, 6.5.3.4./1: The sizeof operator shall not be applied … Read more