Delegate unity

//declare
public delegate void Function();
public Function OnEvent;
//use
void DoSomethingOnEvent()
{
	//do something
}
OnEvent += DoSomethingOnEvent;

Unity delegate

Button.onClick.AddListener(delegate { Function(variable); });

Delegates in UnityC#

public delegate void myDelegate();
public myDelegate Del;
 void start()
{
 Del = () => { Debug.log(" Hello there"): };
}
void Update()
{
 if(Input.getkeydown(keycode.space))
      Del();
}

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