Front end of the Slack clone application.

index.js 302B

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  1. 'use strict';
  2. module.exports = (promise, onFinally) => {
  3. onFinally = onFinally || (() => {});
  4. return promise.then(
  5. val => new Promise(resolve => {
  6. resolve(onFinally());
  7. }).then(() => val),
  8. err => new Promise(resolve => {
  9. resolve(onFinally());
  10. }).then(() => {
  11. throw err;
  12. })
  13. );
  14. };