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Ilya Kantor 2017-07-14 09:20:09 +03:00 • committed by GitHub
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@ -67,7 +67,7 @@ f();
The function execution "pauses" at the line `(*)` and resumes when the promise settles, with `result` becoming its result. So the code above shows "done!" in one second. The function execution "pauses" at the line `(*)` and resumes when the promise settles, with `result` becoming its result. So the code above shows "done!" in one second.
Let's emphasize that: `await` literally makes JavaScript wait until the promise settles, and then go on with the result. That doesn't cost any CPU resources, because the engine can do other jobs meanwhile: execute other scripts, handle events etc. Let's emphasize: `await` literally makes JavaScript wait until the promise settles, and then go on with the result. That doesn't cost any CPU resources, because the engine can do other jobs meanwhile: execute other scripts, handle events etc.
It's just a more elegant syntax of getting the promise result than `promise.then`, easier to read and write. It's just a more elegant syntax of getting the promise result than `promise.then`, easier to read and write.