require-optional [![NPM Version][npm-image]][npm-url] [![Build Status][travis-image]][travis-url]

Usage

Install via npm:

``bash
$ npm install require-optional
`

Basic usage:

`javascript
var requireOptional = require('require-optional')
var optDep = requireOptional('dep')
if (optDep) {
/ do stuff with optDep /
}
`

require-optional can return a default value:

`javascript
var optDep = requireOptional('dep', function () {})
optDep('processing')
`

require-optional accepts an error callback for when the module is not found:

`javascript
requireOptional('dep', null, function (err) {
console.warn(err)
})
`

require-optional can also require relative modules:

`javascript
var optDep = requireOptional('./dep')
``

[npm-image]: https://img.shields.io/npm/v/require-optional.svg?style=flat
[npm-url]: https://npmjs.org/package/require-optional
[travis-image]: https://img.shields.io/travis/fengb/require-optional.svg?style=flat
[travis-url]: https://travis-ci.org/fengb/require-optional