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Unity Engine


GetComponentAtIndex

Retrieves a reference to a component at a specified index of the GameObject's array of components.
Read time 2 minutesLast updated 4 days ago

Definition

  • Type: Method
  • Namespace: UnityEngine
  • Assembly: UnityEngine.CoreModule

GetComponentAtIndex(int)

Retrieves a reference to a component at a specified index of the GameObject's array of components.
public Component GetComponentAtIndex(int index)

Parameters

index

The index position in the array of components at which to find the requested object.

Returns

Type

Description

ComponentA reference to a component at the specified index. If no component is found at the specified index, returns
null
.

Remarks

Using
GetComponentAtIndex
is a stable way to access components on a GameObject because the index of a component stays the same unless components are added or removed.
An example use case for this is during UI development. This method throws an exception if the index is out of bounds. Refer to GameObject.GetComponentCount for more information.
using UnityEngine;public class GetComponentAtIndexExample : MonoBehaviour{ public GameObject otherGameObject; void Start() { HingeJoint hinge = otherGameObject.GetComponentAtIndex(5) as HingeJoint; if (hinge != null) { hinge.useSpring = false; } }}
Additional Resources: Component, GameObject.GetComponents

GetComponentAtIndex<T>(int)

Retrieves a reference to a component of type T at a specific index on the specified GameObject.
public T GetComponentAtIndex<T>(int index) where T : Component

Parameters

index

The index position in the array of components at which to find the requested object.

Returns

Type

Description

TA reference to a component of type
T
at the specified index. If no component is found at the specified index, returns
null
.

Remarks

Using
GetComponentAtIndex
is a stable way to access components on a GameObject because the index of a component stays the same unless components are added or removed.
An example use case for this is during UI development. This method throws an exception if the index is out of bounds.
Additional Resources: GameObject.GetComponentCount
using UnityEngine;public class GetTComponentAtIndexExample : MonoBehaviour{ public GameObject otherGameObject; void Start() { HingeJoint hinge = otherGameObject.GetComponentAtIndex<HingeJoint>(5); if (hinge != null) { hinge.useSpring = false; } }}
Additional Resources: Component, GameObject.GetComponents