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Start your free trialJake Morris
Full Stack JavaScript Techdegree Graduate 17,735 Pointsdata.message is undefined
I can't figure out why line 22 is throwing an error. Thanks for taking a look!
2 Answers
Steven Parker
231,269 PointsOn line 35, there's a call to "Promise.resolve" with no argument. But it should be:
return Promise.resolve(response);
YungChiao Liang
6,181 PointsHow can I solve "content.js:2 Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'debugMode')"
const select = document.getElementById('breeds'); const card = document.querySelector('.card'); const form = document.querySelector('form');
// ------------------------------------------ // FETCH FUNCTIONS // ------------------------------------------ function fetchData(url){ return fetch(url) .then(checkStatus) .then(res=>res.json()) .catch(error => console.log('Looks like there was a problem',error)) }
Promise.all([ fetchData('https://dog.ceo/api/breeds/list'), fetchData('https://dog.ceo/api/breeds/image/random')
]) .then(data =>{ const breadList = data[0].message; const randomImage = data[1].message;
generateOperations(breadList);
generateImage(randomImage);
})
// ------------------------------------------ // HELPER FUNCTIONS // ------------------------------------------ function checkStatus(response){ if (response.ok){ return Promise.resolve(response); }else{ return Promise.reject(new Error(response.statusText));statusText }
}
function generateImage(data){ const html =`
<img src="${data}" alt="${select.value}s">
<p>Click to view images of ${select.value}s</p>`;
card.innerHTML =html; }
function generateOptions(data){
const options =data.map(item=>
<option value="${item}">${item}</option>
).join('');
select.innerHTML =options; }
function fetchBreedImage(){ const breed = select.value; const img = card.querySelector('img'); const p = card.querySelector('p');
fetchData(https://dog.ceo/api/breed/${breed}/images/random
)
.then(data =>{
img.src=data.message;
img.alt= breed;
p.textContent=Click to view more ${breed}s
;
});
}
// ------------------------------------------ // EVENT LISTENERS // ------------------------------------------ select.addEventListener('change',fetchBreedImage); card.addEventListener('click',fetchBreedImage);
Steven Parker
231,269 PointsWhen you need help, always create a new question instead of posting one as an answer or comment to someone else's. And for sharing your code, make a snapshot of your workspace and post the link to it (as was done by the original poster).
Jake Morris
Full Stack JavaScript Techdegree Graduate 17,735 PointsJake Morris
Full Stack JavaScript Techdegree Graduate 17,735 PointsThank you for your help!