RaycastAll Detect if nothing hit

How do I check if my RaycastAll didn’t hit anything?

Code:

RaycastHit[] hits;

		hits = Physics.RaycastAll (transform.FindChild("Main Camera").position, transform.FindChild("Main Camera").forward);


		float minDist;
		minDist = Mathf.Infinity;

		for(int i=0;i<hits.Length;i++){
			if(hits*.transform != this.transform){*

_ if(Vector3.Distance(transform.FindChild(“Main Camera”).position, hits*.point)<minDist){_
_ minDist = Vector3.Distance(transform.FindChild(“Main Camera”).position, hits.point);*_

_ print ("We hit: " + hits*.collider.name);*_

* }*
* }*
* }*

if(hits.Length == 0) {

}