Returning Data
Download as PPTX, PDF0 likes490 views
This document discusses function returns in programming. It explains that the return statement is used to end a function's execution and return a value to the calling statement. A function can return a value or expression, and any statements after a return will not be executed. The document also demonstrates how to declare a basic return function and call a function to invoke it and use the returned value.
1 of 5
Download to read offline
More Related Content
What's hot (20)
Ad
Similar to Returning Data (20)
Ad
More from primeteacher32 (20)
Recently uploaded (20)
Returning Data
- 2. THE RETURN STATEMENT • Used to end execution of a function • Can be placed anywhere in a function • Statements that follow the return statement will not be executed • Can be used to prevent abnormal termination of an application • A function can return a value or expression back to the statement that called the function. • Ex. • x = random.random() • val = math.sqrt(16) • In a function that returns a value, the return statement can be used to return a value from the function to the point of call. • assign it to a variable • send it to print • use it in an expression
- 3. DECLARING A RETURN FUNCTION • Code: Declaring a Basic Function: def functionName (): Function Body return valueToReturn • Question: What do you believe will happen if write a return statement with no return value? • Question: What concept does this remind you of?
- 4. CALLING A FUNCTION • Functions just like variables need to be called in order to be invoked • Code: Calling a Function: functionName () o Ex. val = rtnFnCall() print(rtnFnCall()) val = rtnFnCall() * 5
- 5. FUNCTION WITH RETURN EXAMPLE