When creating a new Promise object, we can pass in two callback functions as arguments. For example, if you have ever worked with an API call and made a request to the server, that request returns a "pending" Promise that will ultimately become "resolved" or "rejected".
In Javascript, a Promise object represents the eventual completion of an action. setTimeout allows us to wait a specified amount of time before invoking a new callback function with setInterval operating similarly except the delay will reset and continue repeating.įor the purposes of slowing down operation for something like a while loop, neither of these are directly helpful since they delay the invocation of a new action rather than the delay the original function in which they were called. For example, Ruby has sleep(1000) and Python has time.sleep(1) to "pause" operation for 1 second, but there is no direct correlate in Javascript.Īsynchronous actions in Javascript can usually call upon one of these two functions. Most program languages have a sleep function/method that can be invoked to delay the next operation in a function. How do I slow down the operation speed of a function to the point where I could create visual models and allow the viewer time to process them before it updated to the next step? I had planned to create a second entry in that series this week, however I ran into an obstacle: In my last blog entry, I had created a visualizer to model an approach to solving a Leetcode algorithm problem.
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