async awiat
const data = async () => { const got = await fetch('https://jsonplaceholder.typicode.com/todos/1'); console.log(await got.json()) } data();
async awiat
const data = async () => { const got = await fetch('https://jsonplaceholder.typicode.com/todos/1'); console.log(await got.json()) } data();
await in node js
// server.js function square(x) { return new Promise(resolve => { setTimeout(() => { resolve(Math.pow(x, 2)); }, 2000); }); } async function layer(x) { const value = await square(x); console.log(value); } layer(10);
js async await
/* Notes: 1. written like synchronous code 2. compatible with try/catch blocks 3. avoids chaining .then statements 4. async functions always return a promise 5. function pauses on each await expression 6. A non promise value is converted to Promise.resolve(value) and then resolved */ // Syntax // Function Declaration async function myFunction(){ await ... // some code goes here } // Arrow Declaration const myFunction2 = async () => { await ... // some code goes here } // OBJECT METHODS const obj = { async getName() { return fetch('https://www.example.com'); } } // IN A CLASS class Obj { // getters and setter CANNOT be async async getResource { return fetch('https://www.example.com'); } }
await in node js
// Normal Function function add(a,b){ return a + b; } // Async Function async function add(a,b){ return a + b; }
await in node js
// server.js function square(x) { return new Promise(resolve => { setTimeout(() => { resolve(Math.pow(x, 2)); }, 2000); }); } square(10).then(data => { console.log(data); });
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