The GetOrAddComponent<T> method is a generic method of the GameObject class that attempts to retrieve a component of type T from the GameObject. If the component does not exist, it adds a new component of type T to the GameObject. This method is useful for ensuring that a GameObject has a specific component, without needing to check for its existence beforehand.
To use the GetOrAddComponent<T> method, specify the type of component you want to retrieve or add as the generic type parameter T. The method also takes a boolean parameter startEnabled which determines whether the component should be enabled upon creation if it does not already exist.
// Example usage of GetOrAddComponent // Assuming 'gameObject' is an instance of GameObject var myComponent = gameObject.GetOrAddComponent<MyComponent>(true); // 'myComponent' will be the existing component if it exists, // or a new instance of MyComponent if it doesn't.