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Can constructors return Boolean?
The constructor is suppose to create an object. Since in php booleans are not considered to be objects the only option is null. Otherwise use a workaround i.e. write a static method which creates the actual object. A constructor cannot return anything but the object it is attempting to create.
Why constructor does not have return value?
So the reason the constructor doesn’t return a value is because it’s not called directly by your code, it’s called by the memory allocation and object initialization code in the runtime. Its return value (if it actually has one when compiled down to machine code) is opaque to the user – therefore, you can’t specify it.
Why constructor has no return type in C++?
You can’t call constructors from your C++ code because constructors don’t have a name. Making constructors not have a return type emphasizes to the programmer that constructors are a very different kind of function than other functions.
Can a constructor return false?
No. Constructors do not have return values. If you require getting some kind of result from a constructor you can do a few things: If you need a return value either use a method to do the heavy lifting (usually called init() ).
Can a constructor return?
No, constructor does not return any value. While declaring a constructor you will not have anything like return type. In general, Constructor is implicitly called at the time of instantiation. And it is not a method, its sole purpose is to initialize the instance variables.
Is constructor a void?
Constructor is not like any ordinary method or function, it has no return type, thus it does not return void.
What does the return false accomplish in Javascript?
return false inside a callback prevents the default behaviour. For example, in a submit event, it doesn’t submit the form. return false also stops bubbling, so the parents of the element won’t know the event occurred.
What would happen if a constructor returns a value?
A constructor can not return a value because a constructor implicitly returns the reference ID of an object, and since a constructor is also a method and a method can’t return more than one values.