In case of rejection of Promise, the await throws the rejected value. Something like that is possible with JavaScript. You may need certain lines of code to execute at a point in the future, when you explicitly specify, rather than all the code executing synchronously. setTimeout () Dionysia Lemonaki Sometimes you might want to delay the execution of your code. The value of await is that of the fulfilled Promise. JavaScript Wait How to Sleep N Seconds in JS with. Therefore, the above sleep() method will only suspend the execution of the function where you'll call it. The await operator makes the async function execution halt until a Promise is settled, and resume execution after fulfillment of Promise. Remember that due to the asynchronous nature of JavaScript, it is not possible to stop the entire program execution. But after the introduction of promises in ES6, we can easily implement such a feature in JavaScript to make a function sleep: const sleep = ( ms ) => timer ( ) // Start time -> T08:42:34.754Z // After 2s -> T08:42:36.763Z // After 4s -> T08:42:38.764Z However, this functionality is not available in JavaScript due to its asynchronous execution model. Similarly, PHP has sleep(2), and Python has time.sleep(2) to make the program stops for 2 seconds.
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