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Function Statement (Visual Basic)
In this articleDeclares
the name, parameters, and code that define a Syntax
Parts
RemarksAll executable code must be inside a procedure. Each procedure, in turn, is declared within a class, a structure, or a module that is referred to as the containing class, structure, or module. To return a value to the calling code, use a Defining a FunctionYou can define a
A If this procedure uses the Returning from a FunctionWhen the To return a value from a function, you can either assign the value to the function name or include it in a The
The following example assigns the return value to the function name
The If you use Calling a FunctionYou call a You call a You can also call a function by using the Visual Basic sometimes
rearranges arithmetic expressions to increase internal efficiency. For that reason, you shouldn't use a Async FunctionsThe Async feature allows you to invoke asynchronous functions without using explicit callbacks or manually splitting your code across multiple functions or lambda expressions. If you mark a function with the
Async modifier, you can use the Await operator in the function. When control reaches an Note An An An A Sub Statement can also be marked with the For more information about Iterator FunctionsAn iterator function performs a custom iteration over a collection, such as a list or array. An iterator function uses the Yield statement to return each element one at a time. When a Yield statement is reached, the current location in code is remembered. Execution is restarted from that location the next time the iterator function is called. You call an iterator from client code by using a For Each…Next statement. The return type of an iterator function can be IEnumerable, IEnumerable<T>, IEnumerator, or IEnumerator<T>. For more information, see Iterators. Example 1The following example uses the
Example 2The following example invokes the function declared in the preceding example.
Example 3In the following example, The
See also
FeedbackSubmit and view feedback for Where is the function defined in Python?In Python, you define a function with the def keyword, then write the function identifier (name) followed by parentheses and a colon. The next thing you have to do is make sure you indent with a tab or 4 spaces, and then specify what you want the function to do for you.
Do Python function names follow the same rules as those for naming variables?Function and Variable Names
Function names should be lowercase, with words separated by underscores as necessary to improve readability. Variable names follow the same convention as function names.
What is a function header quizlet?function header. shows the function name, return type and parameter list; int main() void functions.
What is a function in programming quizlet?a group of statements that exist within a program for performing a task. Examples of Functions: print( ) input( ) format( )
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