Different reference using GetComponent and [SerializeField] GameObject ?

Unity Engine
1

What are the different between this?

2

???

SerialiseField is used to expose a variable to the inspector. Use it when you want to drag and drop a reference.

GetComponent is used to get a reference to a specific component when you have a reference to its GameObject.

Functionally once you have a reference they are identical.

3

So drag and drop reference is the same as GetCompoent?

4

The reference is the same, yes.

Drag and drop is appropriate for things that already exist on the scene. GetComponent does the same thing in code.

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