Array() as default callback

More than 1 year has passed since last update.

const doSomethingSync = (params, callback = Array) => {

if (!validate(params)) {
return callback(new Error(), null);
}

const result = calc(params);
return callback(null, result);
};

// Retrieve as returning values.
const [err, result] = doSomethingSync(params);

// Retrieve with node-style callback.
doSomethingSync(params, (err, result) => { });