how to spawn a object in unity

                
                        using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class spawnObject : MonoBehaviour
{
    //Here, we declare variables.
    public GameObject objToSpawn;
    //public means the var is exposed in the inspector, which is super helpful.
    public float timeLeft, originalTime;

	// Update is called once per frame
    void Update()
    {
        //tick down our timer:
        timeLeft -= Time.deltaTime;
        //timeLeft = timeLeft - Time.deltaTime;
        if(timeLeft<=0)
        {
            SpawnIt();

            //reset the time:
            timeLeft = originalTime;
        }

        //let's also spawn on button press:
        if (Input.GetKey(KeyCode.Return))
        {
            SpawnIt();
        }
    }

    void SpawnIt()
    {
        //spawn our coin:
        Instantiate(objToSpawn, transform.position, Quaternion.identity);
    }
}
                    
                

spawn a object with unity

                        
                                //In Unity, spawn = instatiate.
//So if you want to spawn something you instantiate it like so:

public GameObject WhatToInstantiate; //Set this in the inspector to what you want to spawn

Instantiate(WhatToInstantiate, transform.position, transform.rotation);
                            
                        

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