增加获取附近相机接口字段可能为空判断

‘liusuyi’

2023-06-21 0d41af875165ed3d4bc0560b7053fdf43df51608

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