Like Node.js util.promisify

promisify.js

function promisify(func) {
  return (...args) => {
    const args1 = args.slice(0, args.length);
    return new Promise((resolve, reject) => {
      const callback = (err, ...rest) => {
        if (err) {
          reject(err);
        } else {
          resolve(...rest);
        }
      };
      func(...args, callback);
    });
  };
}