Quick Answer: Does A Function Return A Value?

Does a function always return a value?

Does calling a function always return a value.

If we do not explicitly return a value, then by default undefined value is returned from a function.

That is to say, a function will always return a value.


Can you return a function?

And you can return a function. a function is just a thing. In your case, returning b returns the thing, the thing is a callable function. Returning b() returns the value returned by the callable function.

What is a function in Python?

Advertisements. A function is a block of organized, reusable code that is used to perform a single, related action. Functions provide better modularity for your application and a high degree of code reusing.

What is the difference between return 0 and return 1?

in main function return 0 or exit(0) are same but if you write exit(0) in different function then you program will exit from that position. returning different values like return 1 or return -1 means that program is returning error . … But destructors are called if return 0 is used.

Why do we use return in a function?

The return statement causes your function to exit and hand back a value to its caller. The point of functions in general is to take in inputs and return something. The return statement is used when a function is ready to return a value to its caller.

How does a function return a value in Python?

Return Values They can be situated anywhere in the function body. A return statement ends the execution of the function call and “returns” the result, i.e. the value of the expression following the return keyword, to the caller. If the return statement is without an expression, the special value None is returned.

What is a function return value?

A return is a value that a function returns to the calling script or function when it completes its task. A return value can be any one of the four variable types: handle, integer, object, or string. The type of value your function returns depends largely on the task it performs.

Does a function have to return a value python?

A function in Python is defined with the def keyword. Functions do not have declared return types. … In the case of no arguments and no return value, the definition is very simple. Calling the function is performed by using the call operator () after the name of the function.

Can we return 2 values from a function in Python?

In Python, you can return multiple values by simply return them separated by commas. As an example, define a function that returns a string and a number as follows: Just write each value after the return , separated by commas. … Note that it is actually the comma which makes a tuple, not the parentheses.

Can a python function return two variables?

Python functions can return multiple variables. These variables can be stored in variables directly. A function is not required to return a variable, it can return zero, one, two or more variables. This is a unique property of Python, other programming languages such as C++ or Java do not support this by default.

What is return value How can it be used?

Generally, a return value is used where the function is an intermediate step in a calculation of some kind. You want to get to a final result, which involves some values that need to be calculated by a function.