const data = async () => {
const got = await fetch('https://jsonplaceholder.typicode.com/todos/1');
console.log(await got.json())
}
data();// example using promise
const user = () => {
fetch("https://randomuser.me/api/?results=1")
.then((data) => {
console.log(data); // here you recive data
}).catch((err)=>{
console.log(err); // here error
});
}
// example using async/await
const user = async () => {
// you must have use async keyword before use await
const data = await fetch("https://randomuser.me/api/?results=1");
console.log(data); // if error occured it will be null or empty
}
const yourAsyncFunction = async () => {
// do something asynchronously and return a promise
return result;
}
anArray.forEach(async item => {
// do something asynchronously for each item in 'anArray'
// one could also use .map here to return an array of promises to use with 'Promise.all()'
});
server.getPeople().then(async people => {
people.forEach(person => {
// do something asynchronously for each person
});
});function greeting(name) {
alert('Hello ' + name);
}
function processUserInput(callback) {
var name = prompt('Please enter your name.');
callback(name);
}
processUserInput(greeting);const foo = async () => {
await// do something
}
// OR
async function foo() {
await// do something
}// Old School Javascript Invoke
(async function() {
await someAsyncFunction();
})();
//New ES6 Javascript Invoke
(async () => {
await someAsyncFunction();
})();
//Example (async & await)
function delayResult() {
return new Promise(resolve => {
setTimeout(() => {
resolve(‘Done’);
}, 5000)
})
}
async function getResult() {
let result = await delayResult();
return result;
}
getResult();
//New Example
const data = async () => {
const got = await fetch('https://jsonplaceholder.typicode.com/todos/1');
console.log(await got.json())
}
data();