intro

There are two methods, even though they are not a part of the JavaScript specification, that can be used in scheduling function execution ¹. One of these methods, the setInterval, is used to repeatedly execute a function at a fixed time interval, which is useful for animations, timers, or any task requiring periodic execution ². For complex animation, where the interval parameeter is irrelevant, it is advisable to use another API requestAnimationFrame which executes game logic or animation processing before drawing the next frame on the screen ³. Another alternative for animation is using SVG, where its animations can create smooth, scalable, and lightweight visuals ⁴. There are various different techniques, where each has its own weakness and strenght, e.g. educational visualization or tracking-analysis requires different approach ⁵.

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