Interleaving of await and promises

interleave.js

async function pr(v) { console.log("pr(" + v + ")"); }

async function f() { for (var i = 0; i < 10; i++) { await pr(i); } return 0; }

function ct(v) { console.log("counter" + v); if (v > 0) Promise.resolve(v - 1).then(ct); }

ct(10); f();