async vs await javascript

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showing results for - "async vs await javascript"
Rudy
21 Feb 2017
1async function myFetch() {
2  let response = await fetch('coffee.jpg');
3
4  if (!response.ok) {
5    throw new Error(`HTTP error! status: ${response.status}`);
6  }
7
8  let myBlob = await response.blob();
9
10  let objectURL = URL.createObjectURL(myBlob);
11  let image = document.createElement('img');
12  image.src = objectURL;
13  document.body.appendChild(image);
14  }
15}
16
17myFetch()
18.catch(e => {
19  console.log('There has been a problem with your fetch operation: ' + e.message);
20});
source
Benjamín
04 Apr 2020
1fetch('coffee.jpg')
2.then(response => {
3  if (!response.ok) {
4    throw new Error(`HTTP error! status: ${response.status}`);
5  }
6  return response.blob();
7})
8.then(myBlob => {
9  let objectURL = URL.createObjectURL(myBlob);
10  let image = document.createElement('img');
11  image.src = objectURL;
12  document.body.appendChild(image);
13})
14.catch(e => {
15  console.log('There has been a problem with your fetch operation: ' + e.message);
16});
source
Giada
18 Oct 2020
1
2
3async function fancyShowRainbow(){
4  const response = await fetch("rainbow.jpg");
5  const blob = await response.blob();
6  document.querySelector(".my-image").src = URL.createObjectURL(blob);
7}
8
9
10function showRainbow(){
11  fetch("rainbow.jpg")
12  .then(res => {
13    console.log(res);
14    return res.blob();
15  })
16  .then(blob => {
17    document.querySelector(".my-image").src = URL.createObjectURL(blob);
18    console.log(blob);
19  })
20  .catch(error => {
21    console.log("ERROR!!");
22    console.error(error);
23  });
24}
25
26
27
source
Elias
21 Jan 2019
1async function myFetch() {
2  let response = await fetch('coffee.jpg');
3  if (!response.ok) {
4    throw new Error(`HTTP error! status: ${response.status}`);
5  }
6  return await response.blob();
7
8}
9
10myFetch().then((blob) => {
11  let objectURL = URL.createObjectURL(blob);
12  let image = document.createElement('img');
13  image.src = objectURL;
14  document.body.appendChild(image);
15}).catch(e => console.log(e));
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