import { registerUnbound } from "discourse-common/lib/helpers"; registerUnbound("value-at-tl", function (data, params) { let tl = parseInt(params.level, 10); if (data) { let item = data.find(function (d) { return parseInt(d.x, 10) === tl; }); if (item) { return item.y; } else { return 0; } } });