重构引导队列逻辑

‘liusuyi’

2023-12-12 f5fa6fa5e5d14fb3d8703434b30648be76b6e7e6

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