sample of how to do recursion using a promises

promiseRecursion.js

  /**
   * @param {Integer} devs
   * @param {Array} elem
   */
  let getSequences = (devs, elem) => {
    return new Promise((resolve, reject) => {
      if (devs === 0) {
        resolve(elem)
        return
      }
      devs--
      getNextValueForSequence(fdb, 'ACTION_ID_SEQ')
        .then((res) => {
          elem.push(res)
          getSequences(devs, elem)
            .then(() => {
              resolve(elem)
            })
            .catch((err) => {
              reject(err)
            })
        })
        .catch((err) => {
          reject(err)
        })
    })
  }