Version: 2022.2
LanguageEnglish
  • C#

Object.operator ==

Suggest a change

Success!

Thank you for helping us improve the quality of Unity Documentation. Although we cannot accept all submissions, we do read each suggested change from our users and will make updates where applicable.

Close

Submission failed

For some reason your suggested change could not be submitted. Please <a>try again</a> in a few minutes. And thank you for taking the time to help us improve the quality of Unity Documentation.

Close

Cancel

Switch to Manual
public static bool operator ==(Object x, Object y);

Parameters

x The first Object.
y The Object to compare against the first.

Description

Compares two object references to see if they refer to the same object.

using UnityEngine;

public class Example : MonoBehaviour { public Collider target; void OnTriggerEnter(Collider trigger) { if (trigger == target) { print("We hit the target trigger"); } } }

Get early out 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; } } }

Be careful when comparing with null.

e.g.

using UnityEngine;

public class Example : MonoBehaviour { void Start() { GameObject go = new GameObject(); Debug.Log(go == null); // false

Object obj = new Object(); Debug.Log(obj == null); // true } }

Instatiating a GameObject adds it to the Scene so its completely initialized (!destroyed). Instantiating a simple UnityEngine.Object has no such semantics, so the it stays in the 'destroyed' state which compares true to null.