Legacy Documentation: Version 5.6 (Go to current version)
LanguageEnglish
  • C#
  • JS

Script language

Select your preferred scripting language. All code snippets will be displayed in this language.

GameObject.GetComponent

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 function GetComponent(type: Type): Component;
public Component GetComponent(Type type);

Parameters

type The type of Component to retrieve.

Description

Returns the component of Type type if the game object has one attached, null if it doesn't.

GetComponent is the primary way of accessing other components. From javascript the type of a script is always the name of the script as seen in the project view. You can access both builtin components or scripts with this function.

#pragma strict
public class GetComponentExample extends MonoBehaviour {
	function Start() {
		var hinge: HingeJoint = gameObject.GetComponent(HingeJoint) as HingeJoint;
		if (hinge != null)
			hinge.useSpring = false;
	}
}
using UnityEngine;

public class GetComponentExample : MonoBehaviour { void Start() { HingeJoint hinge = gameObject.GetComponent(typeof(HingeJoint)) as HingeJoint;

if (hinge != null) hinge.useSpring = false; } }

public function GetComponent(): T;
public T GetComponent();

Description

Generic version. See the Generic Functions page for more details.

#pragma strict
public class GetComponentExample extends MonoBehaviour {
	function Start() {
		var hinge: HingeJoint = gameObject.GetComponentInParent.<HingeJoint>();
		if (hinge != null)
			hinge.useSpring = false;
	}
}
using UnityEngine;

public class GetComponentExample : MonoBehaviour { void Start() { HingeJoint hinge = gameObject.GetComponentInParent<HingeJoint>();

if (hinge != null) hinge.useSpring = false; } }

public function GetComponent(type: string): Component;
public Component GetComponent(string type);

Parameters

type The type of Component to retrieve.

Description

Returns the component with name type if the game object has one attached, null if it doesn't.

It is better to use GetComponent with a Type instead of a string for performance reasons. Sometimes you might not be able to get to the type however, for example when trying to access a C# script from Javascript. In that case you can simply access the component by name instead of type.

#pragma strict
public class GetComponentExample extends MonoBehaviour {
	function Start() {
		var hinge: HingeJoint = gameObject.GetComponentInParent("HingeJoint") as HingeJoint;
		if (hinge != null)
			hinge.useSpring = false;
	}
}
using UnityEngine;

public class GetComponentExample : MonoBehaviour { void Start() { HingeJoint hinge = gameObject.GetComponentInParent("HingeJoint") as HingeJoint;

if (hinge != null) hinge.useSpring = false; } }