The async and await syntax makes reading and writing the code a breeze.įinally, we can call async functions in other async functions since these types of functions return promises only. We can write time-delayed JavaScript code by using the setTimeout function.

It makes time-delayed code execution clean and readable. With promises, we can solve timing issues easily. In JavaScript, there’s no sleep function like in other languages. This shows that async functions are promises. setTimeout () is an asynchronous function, meaning that the timer function will not pause execution of other functions in the functions stack. We can create a function that runs code after a specified amount of time by writing: const runLater = (delay) => )() Like most time-sensitive JavaScript code, it’s going to be asynchronous since this won’t hold up the main thread running our program. We can use it to create our own sleep function. There’s a setTimeout function that lets us run code after a specified number of milliseconds.

These time intervals are called timing events. Timing Events The window object allows execution of code at specified time intervals. Sometimes you want your function to pause execution for a fixed amount of seconds or milliseconds. However, we can easily make one with existing functions. JavaScript can be executed in time-intervals. Learn how to make your function sleep for a certain amount of time in JavaScript. If we try to search for the sleep function in JavaScript, we won’t find it.

Javascript time sleep