手动引导增加禁引可视域判断

‘liusuyi’

2023-10-28 7786c1a71400a8e1635d2d6c94161a0474c4bb67

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