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January 17th, 2018 ×

Async + Await

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Show Notes

02:55

06:00

  • Callback Hell
  • Q
  • Bluebird
  • What is a promise?
  • Promises are an IOU

8:30

  • Async + Await IS promises
  • What is Async + Await?
  • How does the code look?
  • Returning values from an await

15:20

  • Performance Considerations
  • MEGA PROMISES
  • Promise.all()
  • Here is an example:
  • const [weather, store] = Promise.all(getWeather(), getStores());

19:22

  • This stuff is 100% native
  • Most new Browser APIs are build on Promises
  • Fetch()
  • Some examples:
  • await fetch('https://api.github.com/users/wesbos').then(data => data.json())
  • OR
  • await (await fetch('https://api.github.com/users/wesbos')).json()
  • Axios

22:48

27:00

  • Snackisodes
  • Snack Packs
  • Hasty Treats?!!!

28:00

30:00

  • Error Handling Methods
  • View my slides for some code examples.
  • Try/Catch
  • High Order Function
  • Just handle the error when you callIt().catch(dealWithIt);
  • Node's process.on('unhandledRejection') event

36:00

  • Browser Support
  • Babel it!

38:00

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