Functions

Functions let you encapsulate behavior logic and reuse it across handlers.

Declaration

behavior .card {
  count: 0;

  increment() {
    count += 1;
  }

  on click() { increment(); }
}

Async / await

behavior .card {
  async load() {
    data = await fetch("/data");
  }
}

Return values

behavior .card {
  add(a, b) { return a + b; }
  total: add(2, 3);
}