Question

How can I create an update function in javascript/jquery?

An update function is a function that is run at each step in the game, say 60 times a second for example. It is used a lot in game development.

How can I make something like this in jquery?

Answer 1

SetInterval will be useful to you in this instance.

You can use it like this –

var timer = setInterval(callback,delay);

This code will execute a function named callback every delay miliseconds.

To stop the timer, you can use the clearInterval() method.

clearInterval(timer);

As I stated, the intervals are defined in milliseconds so in order for your callback to execute 60 times a second you would need to pass 16 or 17 milliseconds as the delay parameter.