require-one-of

Conditional require with fallback support. Minimal size (>700B), no dependencies.

Install

$ npm install require-one-of --save

Usage

const requireOneOf = require('require-one-of')

// throw an error if `puppeteer` not found
requireOneOf(['puppeteer'])

// throw an error if `puppeteer` or `puppeteer-core` not found
requireOneOf(['puppeteer', 'puppeteer-core'])

// pass fn as second argument for setup custom error
requireOneOf(['puppeteer', 'puppeteer-core'], modules => {
  return new TypeError(
    `Uh, oh. ${modules
      .map(m => `'${m}'`)
      .join(',')} not found on dependencies`
  )
})

API

requireOneOf(modules, [fn])

modules

Required
Type: array

List of modules to be required. The first found will be resolved.

fn

Type: function

It exposes the function to call to create the error to be returned in case none of the modules are found.

License

require-one-of © Kiko Beats, released under the MIT License.
Authored and maintained by Kiko Beats with help from contributors.

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