how to find distance between game objkects in unity code example

Example 1: check distance to gameobject

/// <summary>
/// Return distance between two points
/// </summary>
/// <param name="target"></param>
/// <param name="startPos"></param>
/// <returns></returns>
public float CheckDistanceTwoPoints(Vector3 target, Vector3 startPos)
{
	return Vector3.Distance(target, startPos);
}

Example 2: how to compare distance between 2 objects unity

float distance = Vector3.Distance (object1.transform.position, object2.transform.position);