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DocumentationCore ConceptsFunctions

Functions

Learn how to define reusable blocks, pass arguments, and call functions to organize and simplify your Spark programs.

Function Declaration

A function is declared using the func keyword, followed by the function name and optional parameters.

# function declaration

func showWelcomeMessage
  print "Welcome to Spark!"
end

Function Parameters

Functions can accept parameters that act as variables inside the function body.

# function declaration
func greetUser name,age
  print "Hello", name, "Your age is", age
end

# function call
fn greetUser "john" 22

Function Call

Functions are executed using the fn keyword, followed by the function name and arguments.

# function calls

fn greetUser "soham" 22
fn showWelcomeMessage

Complete Example

func showWelcomeMessage
  print "Welcome to Spark!"
end

func greetUser name,age
  print "Hello", name, "Your age is", age
end

fn greetUser "John" 22
fn showWelcomeMessage
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