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Discussion on: Understanding JavaScript Promises

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sunflowerseed •

I usually don't see the part response.status >= 200 && response.status < 300 and if it is done, won't you need to check for 304 as well?

Usually I see the usage:

  fetch(' url ')
    .then(response => response.json())
    .then(data => { do something with data })
    .catch(err => console.log(err));