async queue example should show how to handle errors

[ORESoftware]

Looking at the docs for async.queue
https://caolan.github.io/async/docs.html#queue

// create a queue object with concurrency 2
var q = async.queue(function(task, callback) {
    console.log('hello ' + task.name);
    callback();
}, 2);

// assign a callback
q.drain = function() {
    console.log('all items have been processed');
};

is there an

q.onError = function(err){

}

handler that we can use?

I don't think q.drain is an error-first callback, and I don't want to pass a callback for each q.push or q.unshift call, I just want to use one error-first callback.

This should exist and be in the docs, right?

[aearly]

https://caolan.github.io/async/docs.html#QueueObject

q.error exists, and there is an optional callback you can pass to q.push().

[ORESoftware]

@aearly it needs to be documented in the example, that is the bug. How can I add it to the example? How do I make a PR for the docs?

[aearly]

The example is in the JSDoc comment in the queue source.

[ORESoftware]

#1540

sounds good