765: JS Promises Fundamentals - Part 1

Syntax - Tasty Web Development Treats

محتوای ارائه شده توسط Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers. تمام محتوای پادکست شامل قسمت‌ها، گرافیک‌ها و توضیحات پادکست مستقیماً توسط Wes Bos and Scott Tolinski - Full Stack JavaScript Web Developers یا شریک پلتفرم پادکست آن‌ها آپلود و ارائه می‌شوند. اگر فکر می‌کنید شخصی بدون اجازه شما از اثر دارای حق نسخه‌برداری شما استفاده می‌کند، می‌توانید روندی که در اینجا شرح داده شده است را دنبال کنید.https://fa.player.fm/legal

1+ y ago 22:00

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In this 3-course series, Scott and Wes serve up some JavaScript Promises treats. In part 1, they unravel the concept of promises and delve into common examples of their usage, from creating and waiting on promises, to database queries and user permissions.

Show Notes

00:00 Welcome to Syntax!
01:27 Brought to you by Sentry.io.
02:32 What is a promise?
Promise mdn web docs.
03:27 Common examples of promises.
- 03:45 A fetch call to an API returns a promise.
- 05:54 A database query or Insert command
- 07:18 A request for user permissions.
- 07:37 A wait function.
08:08 Resolve or rejecting promises.
09:33 Creating promises.
- 09:46 New promise.
- 11:09 Promise.withResolvers().
- 11:37 An async function.
14:34 Waiting on a promise.
- 15:09 .then().
- 16:50 Await.
- 17:44 Why use one wait method over the other?

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