Explain the working of timers in JavaScript? Also elucidate

Timers in javascript

 

Timers allow you to execute code at a set time or repeatedly using an interval. This is accomplished with the setTimeout, setInterval, and clearInterval functions. The setTimeout(function, delay) function initiates a timer that calls a specific function after the delay; it returns an id value that can be used to access it later. The setInterval(function, delay) function is similar to the setTimeout function except that it executes repeatedly on the delay and only stops when cancelled. The clearInterval(id) function is used to stop a timer. Timers can be tricky to use since they operate within a single thread, thus events queue up waiting to execute

 

https://dzone.com/articles/how-javascript-timers-work

 

https://www.w3schools.com/js/js_timing.asp 

 

Drawbacks of timer in javascript

 

 No, there is no disadvantage. However, the timer isn't the most accurate. See also: Will setInterval drift? This may not matter to you, as it is a bigger problem for timers fired rapidly. Plus, it doesn't soundl ike exact timing is a problem for you either.

 

https://stackoverflow.com/questions/11938549/are-there-any-disadvantages-to-using-javascript-setinerval-with-a-long-interval 

 

https://stackoverflow.com/questions/985670/will-setinterval-drift