remove-dir-with-retries.js

function removeDirWithRetries(folderPath) { 
    
    let delay = 50;
    let attempts = 5;

    const retryFunc = () => fsa.rmdirAsync(folderPath).catch((e) => { 
                    
        if (e.code === "ENOTEMPTY") {

            attempts--;

            if (attempts > 0) {
                return Promise.delay(delay *= 2).then(retryFunc);
            }
        }

        throw e;
    });

    return retryFunc();
}