godot connect signal to script code example

Example 1: connect signal godot

Awesome response by @Zwazel for code connection, but remember that you can connect
via the visual interface by:
1. Going to the node that emits the signal
2. Click Node section
3. Choose the signal and click connect
4. Now choose the node to be connected and func name

Example 2: godot connect signal code

extends Node2D


func _ready():
    $Timer.connect("timeout", self, "_on_Timer_timeout")


func _on_Timer_timeout():
    $Sprite.visible = !$Sprite.visible