handle-promise.js

function getList() {
  const list = [1, 2, 0, 3, 4]
  return Promise.resolve(list)
}

function task() {
  return new Promise((resolve, reject) => {
    getList()
      .then((list) => {
        let hasFailure = false
        console.log('1. log out list')
        list.forEach(v => {
          console.log(v)
          if (v === 0) {
            hasFailure = true
          }
        })
        if (hasFailure) {
          reject(new Error('there is no zero'))
        }
        resolve('no zero')
      })
      .then(() => {
        console.log('2. other tasks')
      })
      .catch(reject)
  })
}

task().then((r) => { console.log(r) }).catch(e => { console.log(e) })