# Function Declaration

A function declaration stores a function under an identifier. The identifier can be used to execute the function.

If a function omits the return type it will return void.

The return keyword can be used to stop execution of the function and optionally return a value to the function caller.

Functions can be overloaded, as long as the parameters are different.

# Structure

FuncDecl = FuncSig Block

# Example

function main() {
  print('Hello, World!')
}

function printNumbers(numbers: Number[]) {
  for num in numbers {
    print(num)
  }
}

function add(a: Number, b: Number): Number {
  return a + b
}

function <T> identity(x: T): T {
  return x
}

# References

• Block
• Function Signature

# Note

Initially it was the idea to have type inference based on the usage of a variable. This would allow a function to omit all types, while still being typed.

function add(a, b) {
  return a + b
}

This is however no longer allowed.