random ore

[snow bridge]

Use the getBlock() methods setType() as well as random, for example mine

Sample code:

import { Random } from "random.js"
import { ItemStack } from "@minecraft/server"

function setRandomOre(dimension, location) {
  let block = dimension.getBlock(location)
  if (!block) return
  dimension.spawnItem(new ItemStack(Random.element(["diamond_ore","iron_ore","gold_ore"])), block.center())
}