avoid bad practice in data fetch+ TS

example.ts

type SomeRes = {
  id: number;
  title: string;
};

const fetchSomeStuff = async () => {
  const res = await fetch("...");
  if (res.ok) {
    const data: SomeRes = await res.json();
    // no error even tho the link doesn't even exist
    data.title;
  }

  // * how it should be
  if (res.ok) {
    const data = await res.json();
    // no error even tho the link doesn't even exist
    if (!("title" in data)) {
      return console.error("missing prop title");
    }

    // And so on .... OR
    if (!("title" in data)) {
      data.title = "default-value";
    }
  }
};