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JavaScript Asynchronous Programming with JavaScript Asynchronous JavaScript with Callbacks Implement a Callback

Katarzyna Russek
Katarzyna Russek
6,086 Points

What if there are more people with the exact same name as the astronaut?

I see a note on the page:

Michael Barratt Results unavailable for Michael Barratt

Michael Barratt may refer to:

Michael Barratt (1928–2022), British television presenter Michael Barratt (astronaut), American astronaut Shakin' Stevens, Welsh singer

2 Answers

Steven Parker
Steven Parker
231,172 Points

This would make the project a good bit more complex, but the basic idea would be to check the initial reply to see if you get a "disambiguation" response type. When that happens, repeat the initial request but add the string " (astronaut)" onto the name.

Steven Parker
Steven Parker
231,172 Points

Ulrich Doerr — Glad to help. You can mark a question solved by choosing a "best answer".
And happy coding!

Ulrich Doerr
Ulrich Doerr
2,491 Points

I tried:

function getAstronautSummary(url, callback) {
  const xhr = new XMLHttpRequest();
  xhr.open('GET', url);
  xhr.onload = () => {
    if(xhr.status === 200) {
      let dt = JSON.parse(xhr.responseText);
      if (dt.type="disambiguation") {
        return getJSON(url+ " (astronaut)", callback);
      } 
      return callback(dt);
    }
  };
  xhr.send();
}

and modified

btn.addEventListener('click', (event) => { 
  getJSON(astrosUrl, (json) => {
    json.people.map( person => {
      getAstronautSummary(wikiUrl + person.name, generateHTML);
    });
  });
  event.target.remove();
});

Worked just fine ...

... except all sections prior to Michael Barratt are lost.

Could'nt figure out, why.

Ulrich Doerr
Ulrich Doerr
2,491 Points

slightly embarrassed: it has to be

      if (dt.type === "disambiguation") {
          ...
Steven Parker
Steven Parker
231,172 Points

… or just ==. Either kind of comparison instead of an assignment. :see_no_evil: