automatically require all files inside a directory via an index.js

index.js

'use strict';

let fs = require('fs');
let path = require('path');

function snakeToCamel(s) {
  let strings = s.split('_').map((str, index) => {
    if (index === 0) return str;
    return str.replace(/(^| )(\w)/g, function (x) {
      return x.toUpperCase();
    });
  })
  return strings.join('');
}

function asVar(name) {
  return snakeToCamel(name.replace('.js', ''));
}

function init() {
  let container = {};
  let dir = path.dirname(__filename);
  let files = fs.readdirSync(dir);

  files = files.filter(file => file !== 'index.js' && file.endsWith('.js'));

  for (let file of files) {
    container[asVar(file)] = require(`./${file}`);
  }

  return container;
}

module.exports = init();