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Async and await are powerful features in JavaScript that simplify working with promises and asynchronous operations. They allow you to write asynchronous code that looks and behaves like synchronous code, making it easier to read and maintain.
Async Functions
The async keyword is used to define an asynchronous function. When you prefix a function with async, it always returns a promise. If the function returns a value, JavaScript automatically wraps it in a resolved promise.
Example:
async function myFunction() {return "Hello";}// Equivalent to:function myFunction() {return Promise.resolve("Hello");}Copied!✕CopyYou can use the returned promise with .then() to handle the result:
myFunction().then(value => console.log(value)); // Output: HelloCopied!✕CopyReference: GeeksforGeeks, W3Schools
Await Keyword
The await keyword can only be used inside an async function. It makes the function pause the execution and wait for the promise to resolve before continuing.
Example:
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Async/await Ada sintaksis spesial untuk bekerja dengan promise dengan cara …
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