Can a function return 2 different types?

So there are some practices you might be violating if your function can return multiple types. Knowing them will help you determine if your particular function should return multiple types anyway. Actually, it’s not very uncommon at all to return different types even in a statically typed language.

Can a function return multiple types in C?

In C or C++, we cannot return multiple values from a function directly. We can return more than one values from a function by using the method called “call by address”, or “call by reference”. In the invoker function, we will use two variables to store the results, and the function will take pointer type data.

Can a function return different data types?

4 Answers. No. The return type of a C++ function can only vary based on explicit template parameters or the types of its arguments. It cannot vary based on the value of its arguments.

Can a function have two return statements?

A function can have multiple return statements. When any of them is executed, the function terminates. A function can return multiple types of values.

Should a function always return same type?

So the rule that “functions should always return only one type” is rather meaningless. Having said that, there is a beautiful simplicity to functions that return objects which all share the same properties.

How can I return two data types in C#?

so you don’t need reflection, type checking, casting, parsing, etc. to be generic – you can write the code for just that type. It may feel like redundant code, but you can still refactor to put common pieces into internal “helper” methods. FYI the Framework does this in some places, so it’s not unheard of: Convert.

How can a function return more than 2 values in C#?

No, you can’t return multiple values from a function in C# (for versions lower than C# 7), at least not in the way you can do it in Python. However, there are a couple alternatives: You can return an array of type object with the multiple values you want in it. You can use out parameters.

Can return statement return multiple values?

7 Answers. You can’t return two values. However, you can return a single value that is a struct that contains two values. You can return only one thing from a function.

How can a function return different data types in C++?

1. Create a data container (struct/class) containing the values you want to return. Then just update your function to return the class type rather than void and change your return value to return the class. This way you will be able to return all the data, but still only return one item.

How many return can a function have?

Even though a function can return only one value but that value can be of pointer type. That’s correct, now you’re speculating right!

How many return statements a function can contain?

A function can have multiple return statements but only one of them will be executed because once a return statement is executed, the program control moves back to the caller function skipping the remaining statements of the current function.

Can a JavaScript function return different types?

Summary. JavaScript doesn’t support functions that return multiple values. However, you can wrap multiple values into an array or an object and return the array or the object. Use destructuring assignment syntax to unpack values from the array, or properties from objects.