ember-cerebraljs/addon/utils/flatten.js

Cerebral addon for Ember.js and Glimmer

import { isArray } from '@ember/array';

function flatten (target, opts) {
  opts = opts || {}

  var delimiter = opts.delimiter || '.'
  var maxDepth = opts.maxDepth
  var output = {}

  function step (object, prev, currentDepth) {
    currentDepth = currentDepth || 1
    Object.keys(object).forEach(function (key) {
      var value = object[key]
      var isarray = opts.safe && isArray(value)
      var type = Object.prototype.toString.call(value)
      var isbuffer = false;
      var isobject = (
        type === '[object Object]' ||
        type === '[object Array]'
      )

      var newKey = prev
        ? prev + delimiter + key
        : key

      if (!isarray && !isbuffer && isobject && Object.keys(value).length &&
        (!opts.maxDepth || currentDepth < maxDepth)) {
        return step(value, newKey, currentDepth + 1)
      }

      output[newKey] = value
    })
  }

  step(target)

  return output
}

export default flatten;