async class method javascript code example
Example 1: async await catch error
async function f() {
try {
let response = await fetch('/no-user-here');
let user = await response.json();
} catch(err) {
alert(err);
}
}
Example 2: async awiat
const data = async () => {
const got = await fetch('https://jsonplaceholder.typicode.com/todos/1');
console.log(await got.json())
}
data();
Example 3: async await
async function showAvatar() {
let response = await fetch('/article/promise-chaining/user.json');
let user = await response.json();
let githubResponse = await fetch(`https://api.github.com/users/${user.name}`);
let githubUser = await githubResponse.json();
let img = document.createElement('img');
img.src = githubUser.avatar_url;
img.className = "promise-avatar-example";
document.body.append(img);
await new Promise((resolve, reject) => setTimeout(resolve, 3000));
img.remove();
return githubUser;
}
showAvatar();
Example 4: async await
async function f() {
try {
let response = await fetch('/no-user-here');
let user = await response.json();
} catch(err) {
alert(err);
}
}
f();