Super keyword

In GDScript, super() is used to call a parent function. For example:

class_name Pokemon

var name := ""

func attack() -> void:
  print(name + " attacked!")

A subclass can then use super() to call the parent attack:

class_name Pikachu extends Pokemon

func attack() -> void:
  print(name + " used Thunder Shock!")
  super()

This would result in "... attacked!" appearing after "... used Thunder Shock!".

super can also pass arguments. This is especially useful when overriding _init():

class_name Pokemon

var name := ""

func _init(initial_name: String) -> void:
  name = initial_name

The subclass then can use super() to fill those initial values:

class_name Pikachu extends Pokemon

func _init() -> void:
  super("Pikachu")

Note that contrary to every other method, _init() does not require the same arguments between parents and children classes when overriding it.