But it won't work with loops that require a callback. In contrast to the break statement, continue does not terminate the execution of the loop entirely. An infinite while loop is started. ; If the condition evaluates to true, the body of the loop inside the do statement is executed again. This returns the number of milliseconds passed since the Epoch time. I have looked all over and everywhere people are mentioning setTimeout, but that only causes a delayed start of a function.. Method 1: Using an infinite loop to keep checking for the elapsed time The time that the sleep function starts is first found using the new Date().getTime() method. Please see the do while loop , i have added that because i have to wait until a timer expires and _stMinExpired is set to true. condition An expression evaluated after each pass through the loop. The delay parameter you pass to these functions is the minimum delay time to execute the callback. We'll look at how await affects forEach, map, and filter in the next few sections. Examples of such loops that require a fallback include forEach, map, filter, and reduce. ; If the condition evaluates to true, the body of the loop inside the do statement is executed again. The built-in function setTimeout uses callbacks. ; The condition is evaluated once again. Await in a forEach loop. Node can do nothing while this loop is ticking. Essentially in JavaScript there is no way to pause a running loop. When you use continue without a label, it terminates the current iteration of the innermost enclosing while, do-while, or for statement and continues execution of the loop with the next iteration. However, you can only call this custom wait() function from within async functions, and you need to use the await keyword with it. The continue statement can be used to restart a while, do-while, for, or label statement.. We'll do the same thing as we did in the for-loop example. do statement while (condition); statement A statement that is executed at least once and is re-executed each time the condition evaluates to true. To execute multiple statements within the loop, use a block statement ({ ... }) to group those statements. The setTimeout call in it re-schedules itself with zero delay. This means awaits in a for-loop should get executed in series. Just like JavaScript for, for in, do, do while loops. The function delay(ms) should return a promise. Create a promise-based alternative. Here, The body of the loop is executed at first. Like above example we set a delay to display a message for a spacific times. We'd like a delay in between. This of course is a very bad thing to do in practice, but it’ll help you here to understand that setTimeout delay is not a guaranteed thing, but rather a minimum thing. JavaScript wait() To make JavaScript wait, use the combination of Promises, async/await, and setTimeout() function through which you can write the wait() function that will work as you would expect it should. Each call remembers the real time from the previous one in the times array. The HTML5 standard says: “after five nested timers, the interval is forced to be at least 4 milliseconds.”.. Let’s demonstrate what it means with the example below. That promise should resolve after ms milliseconds, so that we can add .then to it, like this: 'Start' 'Apple: 27' 'Grape: 0' 'Pear: 14' 'End' This behaviour works with most loops (like while and for-of loops)… The code works fine and does what I want it to do, but the for loop executes so quickly that you don't notice the change in opacity. Then the condition is evaluated. When you use await, you expect JavaScript to pause execution until the awaited promise gets resolved. Then only i should send next frame. The result is what you’d expect. 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