@eknkc/maket/build/flatten.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = flatten;
function flatten(obj) {
  var flattened = {};

  var circlular = [];
  var circLoc = [];

  function _route(prefix, value) {
    var i, len, type, keys, circularCheck, loc;

    if (value == null) {
      if (prefix === "") {
        return;
      }
      flattened[prefix] = null;
      return;
    }
    type = typeof value;
    if (typeof value == "object") {
      circularCheck = circlular.indexOf(value);
      if (circularCheck >= 0) {
        loc = circLoc[circularCheck] || "this";
        flattened[prefix] = "[Circular (" + loc + ")]";
        return;
      }
      circlular.push(value);
      circLoc.push(prefix);

      if (Array.isArray(value)) {
        len = value.length;
        if (len == 0) _route(prefix + "[]", null);
        for (i = 0; i < len; i++) {
          _route(prefix + "[" + i + "]", value[i]);
        }
        return;
      }
      keys = Object.keys(value);
      len = keys.length;
      if (prefix) prefix = prefix + ".";
      if (len == 0) _route(prefix, null);
      for (i = 0; i < len; i++) {
        _route(prefix + keys[i], value[keys[i]]);
      }
      return;
    }
    flattened[prefix] = value;
  }

  _route("", obj);

  return flattened;
}