no-then.md

No Then

Rule Details

Yes, you should use promises, but prefer async/await syntax instead of Promise.then() callback chaining.

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/async_function

👎 Examples of incorrect code for this rule:

function getProcessedData(url) {
  return downloadData(url).catch(e => {
    console.log('Error occurred!', e)
  })
}

👍 Examples of correct code for this rule:

async function getProcessedData(url) {
  let v
  try {
    v = await downloadData(url)
  } catch (e) {
    console.log('Error occurred!', e)
    return
  }
  return v
}

Version

4.3.2