测试页兼容流媒体1.8.4

liusuyi

2024-07-11 1fe9f918a907193e84e16de1c4c2d51c2f25c5ec

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