Function

A function is declared as follows:

def add(a, b): 

  return a + b

end

The function can then be called like this:

result = add(1, 4)

It is also possible to give function arguments default values:

def add(a = 0, b = 0):

  return a + b

end

If default values are given in the declaration, arguments can either be provided or skipped, as in the following examples:

result = add(0, 0) 

result = add()

When calling a function, it is important to comply with the declared order of the arguments. If the order is different from its definition, the function does not work as expected.

Arguments can only be passed by value (including arrays). This means that any modification done to the content of the argument within the scope of the function is not reflected outside that scope.

def myProg()

  a = [50,100]

  fun(a)

  def fun(p1): 

     p1[0] = 25

     assert(p1[0] == 25)

     ...

  end

  assert(a[0] == 50)

  ...

end

URScript also supports named parameters.