Awaiting a promise that may throw an error

await-promise.js

var wait = (ms) => 
    new Promise((resolve, reject) => {
        if (Math.random() > 0.5) {
            return reject('NOPE!');
        }

        setTimeout(() => {
            resolve('Done!');
        }, ms);
    });


var doWait = async () => {
    const result = await wait(500);
    console.log(result);
}

doWait();