Wrap a try/catch block with a promise for easy error handling

attempt.js

function attempt(fn) {
    return new Promise((resolve, reject) => {
        try {
            resolve(fn());
        } catch(e) {
            reject(e);
        }
    });
}

// Usage:

attempt(() => (0)()).then((val) => {
    console.log('pass');
}).catch((e) => {
    console.log('fail');
});