async function sha256(message) {
const msgBuffer = new TextEncoder('utf-8').encode(message); // encode as UTF-8
const hashBuffer = await crypto.subtle.digest('SHA-256', msgBuffer); // hash the message
const hashArray = Array.from(new Uint8Array(hashBuffer)); // convert ArrayBuffer to Array
const hashHex = hashArray.map(b => ('00' + b.toString(16)).slice(-2)).join(''); // convert bytes to hex string
return hashHex;
}
sha256('abc').then(hash => console.log(hash));
(async function() {
const hash = await sha256('abc');
}());
