“Async vs attendre javascript” Réponses codées

Async vs attendre javascript

async function myFetch() {
  let response = await fetch('coffee.jpg');

  if (!response.ok) {
    throw new Error(`HTTP error! status: ${response.status}`);
  }

  let myBlob = await response.blob();

  let objectURL = URL.createObjectURL(myBlob);
  let image = document.createElement('img');
  image.src = objectURL;
  document.body.appendChild(image);
  }
}

myFetch()
.catch(e => {
  console.log('There has been a problem with your fetch operation: ' + e.message);
});

Precious Piranha

Async vs attendre javascript

fetch('coffee.jpg')
.then(response => {
  if (!response.ok) {
    throw new Error(`HTTP error! status: ${response.status}`);
  }
  return response.blob();
})
.then(myBlob => {
  let objectURL = URL.createObjectURL(myBlob);
  let image = document.createElement('img');
  image.src = objectURL;
  document.body.appendChild(image);
})
.catch(e => {
  console.log('There has been a problem with your fetch operation: ' + e.message);
});

Precious Piranha

Async vs attendre javascript

async function myFetch() {
  let response = await fetch('coffee.jpg');
  if (!response.ok) {
    throw new Error(`HTTP error! status: ${response.status}`);
  }
  return await response.blob();

}

myFetch().then((blob) => {
  let objectURL = URL.createObjectURL(blob);
  let image = document.createElement('img');
  image.src = objectURL;
  document.body.appendChild(image);
}).catch(e => console.log(e));

Precious Piranha

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