前端开发人员面临的一个有趣挑战

Question

Found an interesting problem that I can't solve.

1 condition. Only json can be changed!

I can't fulfill one condition: data.hasOwnProperty("\\u{0030}")

class JobSeeker {

    get data() {
            return '{"\\\\u{0030}": {}}';
    }

    }

    let data;
    console.assert(
        typeof (data = JSON.parse(new JobSeeker().data)) === "object"
        && data.hasOwnProperty("\u{0030}")
        && typeof Object.values(data)[0] === "object"
        && Boolean(data[+false]) === false
    );

What do you think will be the right json to suit all conditions?

Answer 1

It works if you change the data getter to this:

get data() {
  return '{"\\u0030": null}';
}

That passes the first test because a valid JSON string is returned. The second test passes because "0" is the name of the only property in the object. The third test passes because typeof null is "object" . The fourth test passes because Boolean(null) is false .

I think it would also work if you change \\\0 to just plain 0 .