Even with higher numbers, the delay is never perfect. The setTimeout() method calls a function or evaluates an expression after a specified number of milliseconds. You may also have a look at the following articles to learn more –, JavaScript Training Program (39 Courses, 23 Projects, 4 Quizzes). This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy. function func() { For a long period, the web platform provides JavaScript programmers a lot of functions that permit them to execute code asynchronously after a specific time interval has lapsed, and to recurrently execute a set of code asynchronously till the user tell it to stop.
Tag: javascript,qml,delay. Using setTimeout is bad practice when you want to do something in future but you don’t exactly know when you will be able to do that. The function delay(ms) should return a promise. You can try to run the following code to delay a JavaScript function call with a setTimeout() callback. Javascript program to display a text after 3 seconds. Return Value: It returns the selected … After 2000 ms, the window that gets opened closes automatically. ALL RIGHTS RESERVED. setTimeout(function() {alert('hello');},1250); Want to see it … It returns an identifier for the process. Therefore we can generate this behavior ourselves using a small helper function, thanks to the asynchronous nature of javascript. In the function, setTimeout() is called three times with a gap of 2000 milliseconds as time On executing the code, it can be seen that a button with a certain text gets displayed.