In this code, Print first is displayed first and then the function execution is paused for 2 seconds before the next line of code is executed. In programming languages like C, Ruby, or Python pausing or delaying function execution is pretty straightforward as you would only need to call the sleep function.įor instance, consider the following Python function: import time We’re using our brand new sleep () function as the awaited promise, passing in our desired number of milliseconds (in this case, 700ms, or 7/10ths of a second ).
However, there are different methods you can use to implement its functionality. The Node.Js sleep function does not exist.
The value returned by the promise is considered as a return value from the await() expression.How can we sleep or delay using Node.Js Javascript? Under the async function, we have used the keyword await() to suspend the second console.log() function until the promise has been resolved this takes an average of 4 seconds. The best one you can buy is the Philips SmartSleep Wake-Up Light thanks to its extensive brightness. We will name this function sleep() however, that does not stop you from naming it to any other name that you may find appropriate. A sunrise alarm is purported to ease you into the morning by simulating the light of sunrises. However, using an asynchronous promise-based function, we can use the keyword await() to pause the execution of a piece of code until that promise is fulfilled first. Unlike other programming languages such as C that provide a sleep function, which allows us to sleep a given thread while waiting for another to execute, JavaScript doesn’t have this function. Use the await() Keyword to Pause Execution of Codes in Node.js Function repeatedly executed after every 2 seconds! Where this API isnt supported, an empty silent video is played to emulate this behaviour (using NoSleep.js).
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