Introduction to Functions
This lesson introduces you to an important concept, functions.
What Is a Function?
A function is a block of code that can be reused. It is used to perform some specific tasks.
-
main
FunctionThe simplest possible function that we have studied so far is the
main
function that is declared withfn
keyword. This is where the program execution starts.However, it is possible to define a user-defined function.
-
User-defined Functions
The functions that are customized and are written by the programmer to perform the specified tasks.
Define a Function
A function is declared with the fn
keyword.
Syntax
The general syntax is :
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