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help

substack way of --help

help

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substack way of --help

v3 of help requires at least Node.js v4. To use help with an older version, please use help@2.x.

Install

$ npm install help

Usage

var help = require('help')('usage.txt')
 
if (/* someone requested help */) {
  return help(0)
}

API

help(filepath, stream)

returns function(code)

Pipes the contents of to process.stdout.

code is the exit code. If not falsy, then the process is explictly exited.

stream defaults to process.stdout

Full example

var help = require('help')('usage.txt')
var args = process.argv.splice(2)
if (args[0] === '-h' || args[0] === '--help' || args[0] === 'help') {
  // process prints contents of `usage.txt` and returns 
  return help()
}
 
// the first arg must be a number 
if (isNaN(args[0])) {
  // process prints contents of `usage.txt` and exits with code 1 
  return help(1)
}

Author

Evan Lucas

License

MIT (See LICENSE for more info)