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Unity Engine

operator ==(Object, Object)

Compares two object references to see if they refer to the same object.
Read time 1 minuteLast updated 4 days ago

Definition

  • Type: Operator
  • Namespace: UnityEngine
  • Assembly: UnityEngine.CoreModule
public static bool operator ==(Object x, Object y)

Parameters

x

Object
The first object.

y

Object
The object to compare against the first.

Returns

Type

Description

bool

Remarks

When comparing with 
null
, Unity's implementation of the equality operator can give different results than 
Object.ReferenceEquals
or 
==
in standard C#.
In addition to checking if the managed object reference is 
null
, the custom 
==
operator in 
UnityEngine.Object
also checks if the underlying native object pointer is null. If either is true, 
== null
evaluates to 
true
.
For more information on why and how some managed objects can exist in a so-called detached state without a counterpart native object, refer to Object.
using UnityEngine;public class Example : MonoBehaviour{    public Collider target;    void OnTriggerEnter(Collider trigger)    {        if (trigger == target)        {            print("We hit the target trigger");        }    }}
Return early if there is no target:
using UnityEngine;public class Example : MonoBehaviour{    public Transform target;    void Update()    {        // Early out if the target is gone        if (target == null)        {            return;        }    }}