Yup. Function references are just like any other object reference, you can pass them around to your heart’s content. Here’s a more concrete example: function foo() { console.log(“Hello from foo!”); } function caller(f) { // Call the given function f(); } function indirectCaller(f) { // Call `caller`, who will in turn call `f` caller(f); } … Read more
Making sleep.sh executable and adding shell=True to the parameter list (as suggested in previous answers) works ok. Depending on the search path, you may also need to add ./ or some other appropriate path. (Ie, change “sleep.sh” to “./sleep.sh”.) The shell=True parameter is not needed (under a Posix system like Linux) if the first line … Read more
Try – Call CatSubProduktAreakum(Stattyp, Daty + UBound(SubCategories) + 2) As for the reason, this from MSDN via this question – What does the Call keyword do in VB6? You are not required to use the Call keyword when calling a procedure. However, if you use the Call keyword to call a procedure that requires arguments, … Read more
What’s happening here is that you call slice() as if it was a function of NodeList using call(). What slice() does in this case is create an empty array, then iterate through the object it’s running on (originally an array, now a NodeList) and keep appending the elements of that object to the empty array … Read more
The answer to the real question is that you need to do both: Setting the prototype to an instance of the parent initializes the prototype chain (inheritance), this is done only once (since the prototype object is shared). Calling the parent’s constructor initializes the object itself, this is done with every instantiation (you can pass … Read more
Ah ha. I have long wondered about this and even reading a two inch thick book on VBA basically says don’t use it unless you want to use the Find feature of the VBE to easily find calls in large projects. But I just found another use. We know that it’s possible to concatenate lines … Read more
When you pass a function argument by value a copy of the object gets passed to the function and not the original object.Unless you specify explicitly arguments to functions are always passed by value in C/C++. Your function: void changeValue(int value) receives the argument by value, in short a copy of value in main() is … Read more
When shell is True, the first argument is appended to [“/bin/sh”, “-c”]. If that argument is a list, the resulting list is [“/bin/sh”, “-c”, “ls”, “-al”] That is, only ls, not ls -al is used as the argument to the -c option. -al is used as the first argument the shell itself, not ls. When … Read more
Usually you’d pass it as an argument, like so: void Method1() { var myString = “help”; Method2(myString); } void Method2(string aString) { var myString = “I need “; var anotherString = myString + aString; } However, the methods in your example are event listeners. You generally don’t call them directly. (I suppose you can, but … Read more
When you “call” a function you are basically just telling the program to execute that function. So if you had a function that added two numbers such as: def add(a,b): return a + b you would call the function like this: add(3,5) which would return 8. You can put any two numbers in the parentheses … Read more