actionhero/tutorials/utils.md

actionhero.js is a multi-transport API Server with integrated cluster capabilities and delayed tasks

## Overview

ActionHero ships with a few utility methods exposed for your convince:

## Methods

### `api.utils.hashMerge(a, b)`

*   create a new hash which looks like b merged into a
*   `{`{a:1, b:2}`}` merged with `{`{b:3, c:4}`}` looks like `{`{a: 1, b:3, c:4}`}`

### `api.utils.isPlainObject(object)`

*   determines if `object` is a plain js 'Object' or something more complex, like a stream

### `api.utils.arrayUniqueify(arr)`

*   removes duplicate entries from an array

### `api.utils.objClone(obj)`

*   creates a new object with the same keys and values of the original object

### `api.utils.getExternalIPAddress()`

*   attempts to determine this server's external IP address out of all plausible addressees this host is listening on

### `api.utils.parseCookies(req)`

*   a helper to parse the request object's headers and returns a hash of the client's cookies

### `api.utils.parseIPv6URI(address)`

*   will return `{`{host: host, port: port}`}` for an IPv6 address