How to call a function on a variable?

Question

extends Control

var color = "ffffff"

func _ready():
    print(color)

I want to print the color via calling print on color, so color.print(). (How) can I do this?

Comments

Not sure if I can follow...

Instead of doing print(color) you want to do color.print? Why?

If color would be a class and implement a method called print that would work. However, in your example color is a String, which doesn't have such a method.