id: ts-in-operator-loop
valid:
  - |
    for (const k of Object.keys(obj)) {}
  - |
    for (const [k, v] of Object.entries(obj)) {}
invalid:
  - |
    for (const k in obj) {}
  - |
    for (let k in obj) { use(k); }
  - |
    for (const k in obj) { if (obj.hasOwnProperty(k)) {} }