async/await in 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 await
const data = async () => {
const got = await fetch('https://jsonplaceholder.typicode.com/todos/1');
console.log(await got.json())
}
data();
Example 3: how to make an async function
function resolveAfter2Seconds() {
return new Promise(resolve => {
setTimeout(() => {
resolve('resolved');
}, 2000);
});
}
async function asyncCall() {
console.log('calling');
const result = await resolveAfter2Seconds();
console.log(result);
}
asyncCall();
Example 4: js async await
async function myFunction(){
await ...
}
const myFunction2 = async () => {
await ...
}
const obj = {
async getName() {
return fetch('https://www.example.com');
}
}
class Obj {
async getResource {
return fetch('https://www.example.com');
}
}
Example 5: async await
async function showAvatar() {
await setTimeout(resolve, 3000);
}
showAvatar();
Example 6: await async
function afterPrintSave() {
Xrm.Page.data.save().then(
function () {
resolve();
},
function (err) {
resolve(alert(err.message));
}
);
}