Throw 'What I'm waiting for didn't happen, so I throw an exception.' Īlerts are there only to illustrate the behavior of the code, and should be removed, and the exception should be thrown in the situation where you don’t have what you need. Real sleep () in JavaScript The JavaScript language is single-threaded, which means that blocking that single thread for any period of time will prevent importing things like input handling and rendering.but about blocking the thread when that thread is a Web Worker Its possible to implement sleep () in JavaScript.

This is only to show what happens if an exception is thrown.

They include: The thread time slice varies from OS to OS and processor to processor. There are a few things to consider before using thread.sleep in your test automation code. Var MAX_TRIES = 10 var NEXT_TRY_TIMER = 500 function tryUntilSuccess ( tr圜ount ) Here is what stuck in my mind: Thread.Sleep (n) means blocking the current thread for the number of time slices that occur within n milliseconds.

Javascript thread sleep