When trying to declare an audio context, I encountered an error stating that window is undefined. I attempted declaring declare const window :any above window.Context, but the issue persists. Does anyone have a solution for this problem?
window.AudioContext = window.AudioContext || (window as any).webkitAudioContext
export default function TestPage(){
const audioContext = new AudioContext();
return <>Hello</>
}
next.js operates on the server side, whereas window is only accessible on the client side. This means you will need to ensure that you wait for the component to be mounted before proceeding, as demonstrated below:
export default function TestPage(){
const audioContext = useState(null);
useEffect(() => {
window.AudioContext = window.AudioContext || (window as any).webkitAudioContext;
audioContext.current = new AudioContext();
},[]);
return <>Hello</>
}
The reason for this issue lies in server-side rendering as Next.js is executed on the server side where the 'window' object does not exist since it pertains to the client side only.
One common practice is to create a function that initializes the 'window' object once the code is running on the client browser:
(Assuming you are working with ReactJS based on the component structure and fragment usage in the provided code snippet)
export default function TestPage() {
const [audioContext, setAudioContext] = useState<AudioContext | null>(null)
useEffect(() => {
if (typeof window !== 'undefined') {
const val = window.AudioContext = window.AudioContext || window.webkitAudioContext;
setAudioContext(val)
// Alternatively, carry out your operations here directly without setting state
}
}, [])
useCallback(() => {
if (audioContext !== null) {
const audioCtx = new audioContext();
// Implement your additional logic related to audio context here
}
}, [audioContext ])
return <>Hello</>
}
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