check if gameobject is colliding with unity code example

Example 1: unity how to tell when a gameobject is colliding

void OnCollisionEnter(Collision collision){
        //Check for a match with the specified name on any GameObject that collides with your GameObject
        if (collision.gameObject.name == "MyGameObjectName")
        {
            //If the GameObject's name matches the one you suggest, output this message in the console
            Debug.Log("Do something here");
        }

        //Check for a match with the specific tag on any GameObject that collides with your GameObject
        if (collision.gameObject.tag == "MyGameObjectTag")
        {
            //If the GameObject has the same tag as specified, output this message in the console
            Debug.Log("Do something else here");
        }
    }

Example 2: unity check if other object is colliding

public void OnCollisionEnter(Collision collision)
     {
         // Do your stuff here
     }
     
     //if your collider is a trigger
     public void OnTriggerEnter(Collider other)
     {
         // Do your stuff here
     }