Dat.Gui produces multiple GUI's on hot reload in ReactJS

Two flowers that represent ReactJS and ThreeJS side by side. Beneath them sits the text "dat.gui Error: Multiple GUIs."

To ensure that only one dat.gui is seen on hot reload, destroy the gui in the componentWillUnmount event within a useEffect hook.

A screenshot of Chrome showing multiple, identical GUI's within a ThreeJS (3JS) scene.

In order to prevent ReactJS from generating multiple, identical GUI's on hot reload, you must destroy the GUI in the componentWillUnmount event within a useEffect hook.

To learn how to do this consult the tutorial below.

A screenshot of VSCode showing you how to update the useEffect function to setup the GUI and to destroy it to avoid errors on hot reload.

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Dat.Gui produces multiple GUI's on hot reload in ReactJS

To ensure that only one dat.gui is seen on hot reload, destroy the gui in the componentWillUnmount event within a useEffect hook.

Looking to learn more about ReactJS and ThreeJS ?

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