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Animated particle constellations in 42 lines of JavaScript (slicker.me)

submitted 3 weeks ago by monica_b1998@lemmy.world to c/programming@programming.dev

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[–] bleistift2@sopuli.xyz 3 points 2 weeks ago

If you’re iterating over a whole array and need the index, like in ll.15f., you can instead write

particles.forEach((particle, i) => {
  // loop body
})

There may be a performance hit (I haven’t tested it) because you’re invoking a function on each iteration. And it’s mostly a stylistic choice.