备忘录添加了fid

yz3456

2024-05-10 fbec0a50ff9a4e4afb5ac7cbb965020acb9db2c7

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