Promises, Async Await keywords - LECTURE 2 | JavaScript Full Course | JavaScript for Beginners | #js

Completion (or failure) of an asynchronous

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A Javascript promise can be fulfilled, rejected, or pending
Promises
While a Promise object is "pending" (working), the result is
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undefined.
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When a Promise object is "fulfilled", the result is a value.
When a Promise object is "rejected", the result is an error
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object.
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filename=tryjs_promise2

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Promises Convert callback to promise
setTimeout(function() { myFunction(“hello
world!!!"); }, 3000);
function myFunction(value) {
}

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Async/Await
"async and await make promises easier to write” - async makes a function return a Promise
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syntactic sugar
await makes a function wait for a Promise. You
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don’t need the `.then()` syntax

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