优化线程间录像抢占问题

liusuyi

2023-06-14 5628d007fc9b58fd22981d626e6f3557d8cdccb3

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export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}