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JavaScript Asynchronous Programming with JavaScript Understanding Promises From Callbacks to Promises

Mikel Cati
Mikel Cati
8,045 Points
Posted by Mikel Cati
Mikel Cati
8,045 Points

.onerror error

Hello,

Is anyone else getting : "TypeError: xhr.onerror is not a function" in the console?

1 Answer

Mikel Cati
Mikel Cati
8,045 Points
Mikel Cati
Mikel Cati
8,045 Points

```javascript function getJSON(url) { return new Promise((resolve, reject) => { const xhr = new XMLHttpRequest(); xhr.open("GET", url); xhr.onload = () => { if (xhr.status === 200) { let data = JSON.parse(xhr.responseText);

    resolve(data);
  } else {
    reject(Error(xhr.statusText));
  }
};
xhr.onerror = () => reject(Error("A network error occured"));
xhr.send();

}); }

also i`m getting an Error at XMLHttpRequest.xhr.onload

what am i doing wrong?