Function in Apps Script

A function is defined using the function keyword, followed by a name, and a set of parentheses () that can contain parameters. The function's code block is enclosed in curly braces {}
In JavaScript, the syntax for creating a function is as follows:
function functionName(Parameter1, Parameter2, ...) {
// Function body
}
Here's what each part means:
function: This keyword is used to declare a function.
functionName: This is the name you give to the function.
Parameter1, Parameter2, ...: These are the inputs (parameters) that the function can take. You can define as many parameters as needed, separated by commas.
{ ... }: This block contains the code that will execute when the function is called. It is known as the function body.
In summary, this syntax allows you to define reusable blocks of code in JavaScript.