protocol/lib/flatten.js

Protocols for Node.JS

/*
 * MIT License
 *
 * Copyright (c) 2017 Wouter Klijn <contact@wuhkuh.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */


'use strict'

/**
 * Flatten an Object
 * @param {Object} data input Object
 * @returns {Object} flattened Object
 * @private
 */
function flatten (data) {
  const object = {}

  for (let i in data) {
    if (!data.hasOwnProperty(i)) continue

    /* Flatten object */
    if ((typeof data[i]) === 'object') {
      const flatObject = flatten(data[i])

      for (let x in flatObject) {
        if (!flatObject.hasOwnProperty(x)) continue
        object[i + '.' + x] = flatObject[x]
      }

    /* Return object values */
    } else {
      object[i] = data[i]
    }
  }

  return object
}

module.exports = flatten