what does return do in a function

return

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• Syntax. The expression whose value is to be returned. If omitted, undefined is returned instead.
• Description. When a return statement is used in a function body, the execution of the function is stopped. If specified, a given value is returned to the function caller.

Full Answer

How to create a function with a return value?

how to make a function with return values. just like: define random between first input and second input if pick random 1 to 2 = 1 then return first input else return first input. then the you can do. move random between 3 5 steps. so it have 2 results. move 3 steps.

What is the return type in a function?

Return Type specifies the output type of a function. The output type can be a number,text etc.. If output of function is a number, the return type may be int or float or decimal etc.. If output of function type is text, the return type will be string etc.. The output type ( return type ) can be a user defined class or struct or interface or ...

Can function return more than one values?

These values can be stored in variables directly. A function is not restricted to return a variable, it can return zero, one, two or more values. This is the default property of python to return multiple values/variables which is not available in many other programming languages like C++ or Java.

What is the use of return statement inside a function?

• It is used within a function.
• It is used to return a value to the caller of the function
• This returned value which will be returned, most likely, has uses outside of the function.
• Once the return keyword is encountered, any other statements after that are unreachable and are therefore never executed. ...

What does return do in a function Python?

The Python return statement is a special statement that you can use inside a function or method to send the function's result back to the caller. A return statement consists of the return keyword followed by an optional return value. The return value of a Python function can be any Python object.

What is the purpose of return value?

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.

How does return work in C?

The return statement returns the flow of the execution to the function from where it is called. This statement does not mandatorily need any conditional statements. As soon as the statement is executed, the flow of the program stops immediately and returns the control from where it was called.

What is function return type?

The result of a function is called its return value and the data type of the return value is called the return type. Every function declaration and definition must specify a return type, whether or not it actually returns a value.

What is a function that returns a value called?

Functions that return values are sometimes called fruitful functions. In many other languages, a function that doesn't return a value is called a procedure, but we will stick here with the Python way of also calling it a function, or if we want to stress it, a non-fruitful function.

What function can return the value in Excel?

The INDEX function returns a value or the reference to a value from within a table or range. There are two ways to use the INDEX function: If you want to return the value of a specified cell or array of cells, see Array form. If you want to return a reference to specified cells, see Reference form.

What does return statement do?

The return statement returns the flow of the execution to the function from where it is called. This statement does not mandatorily need any conditional statements. As soon as the statement is executed, the flow of the program stops immediately and return the control from where it was called. The return statement may or may not return anything ...

Can you skip a return statement in C++?

There are various ways to use return statements. Few are mentioned below: Methods not returning a value: In C/C++ one cannot skip the return statement, when the methods are of return type. The return statement can be skipped only for void types.

What is a return in a function?

Returns control to the code that called a Function, Sub, Get, Set, or Operatorprocedure.

What is return statement in a sub-process?

In a Sub or Set procedure, the Return statement is equivalent to an Exit Sub or Exit Property statement , and expression must not be supplied. In a Function, Get, or Operator procedure, the Return statement must include expression, and expression must evaluate to a data type that is convertible to the return type of the procedure.

Can you include returnstatements in the same procedure?

You can include as many Returnstatements as appropriate in the same procedure.

Is returnstatement equivalent to exit subor?

In a Subor Setprocedure, the Returnstatement is equivalent to an Exit Subor Exit Propertystatement, and expressionmust not be supplied.

How to return value in a function?

To return a value we must use a return statement inside the function declaration.

What is return statement in JavaScript?

Finally, return statements are used to return promises in JavaScript.

What is return statement?

The return statement is associated with functions, also known as methods. When a function declaration is made, it is usually done by keeping in mind that it will perform some particular task.

What does return mean in a script?

The return keyword exits a function, script, or script block. It can be used to exit a scope at a specific point, to return a value, or to indicate that the end of the scope has been reached.

Can you send a return value down the pipeline?

Utilizing a unary expression you can send your return value down the pipeline as a single object as illustrated by the following example.

Can return keyword be followed by value?

The return keyword can appear alone, or it can be followed by a value or expression, as follows:

Can you return a value in PowerShell?

In PowerShell, values can be returned even if the return keyword is not used. The results of each statement are returned. For example, the following statements return the value of the $a variable:

What is the function that returns a value in Python?

In general, a function takes arguments (if any), performs some operations, and returns a value (or object). The value that a function returns to the caller is generally known as the function’s return value. All Python functions have a return value, either explicit or implicit.

What is return in Python?

The Python return statement is a special statement that you can use inside a function or method to send the function’s result back to the caller. A return statement consists of the return keyword followed by an optional return value. The return value of a Python function can be any Python object.

What is return statement in Python?

The Python return statement allows you to send any Python object from your custom functions back to the caller code. This statement is a fundamental part of any Python function or method. If you master how to use it, then you’ll be ready to code robust functions.

What is an explicit return in Python?

An explicit return statement immediately terminates a function execution and sends the return value back to the caller code. To add an explicit return statement to a Python function, you need to use return followed by an optional return value:

What is dead code in Python?

As soon as a function hits a return statement, it terminates without executing any subsequent code. Consequently, the code that appears after the function’s return statement is commonly called dead code. The Python interpreter totally ignores dead code when running your functions. So, having that kind of code in a function is useless and confusing.

What happens if you don't supply an explicit return statement in Python?

If you don’t supply an explicit return statement with an explicit return value, then Python will supply an implicit return statement using None as a return value. In the above example, add_one () adds 1 to x and stores the value in result but it doesn’t return result. That’s why you get value = None instead of value = 6. To fix the problem, you need to either return result or directly return x + 1.

What is a function without a return value called?

This can be confusing for developers who come from other programming languages in which a function without a return value is called a procedure .