the-utils/lib/object.js

Set of tools to keep simple things simple

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.obj = exports.deepChangeKey = exports.changeKey = exports.createFilter = undefined;

var _keys = require('babel-runtime/core-js/object/keys');

var _keys2 = _interopRequireDefault(_keys);

var _defineProperty2 = require('babel-runtime/helpers/defineProperty');

var _defineProperty3 = _interopRequireDefault(_defineProperty2);

var _extends3 = require('babel-runtime/helpers/extends');

var _extends4 = _interopRequireDefault(_extends3);

var _typeof2 = require('babel-runtime/helpers/typeof');

var _typeof3 = _interopRequireDefault(_typeof2);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

// ========= Object
var isObject = function isObject(o) {
  return (typeof o === 'undefined' ? 'undefined' : (0, _typeof3.default)(o)) === 'object' && o !== null && o !== undefined && Object.prototype.toString.call(o) === '[object Object]';
};

var has = function has(o, property) {
  return isObject(o) && Object.prototype.hasOwnProperty.call(o, property);
};

var get = function get(o, property, defaultValue) {
  return o !== undefined && has(o, property) ? o[property] : defaultValue;
};

var set = function set(o, property, value) {
  return (0, _extends4.default)({}, o, (0, _defineProperty3.default)({}, property, value));
};

var isEmpty = function isEmpty(o) {
  return !(isObject(o) && o.constructor === Object && (0, _keys2.default)(o).length > 0);
};

var toArray = function toArray(o) {
  return isObject(o) ? (0, _keys2.default)(o).map(function (t) {
    return o[t];
  }) : [];
};

var deep = function deep(obj, props, defaultValue) {
  // If we have reached an undefined/null property
  // then stop executing and return the default value.
  // If no default is provided it will return undefined.
  if (obj === undefined || obj === null) {
    return defaultValue;
  }

  // If the path array has no more elements, we've reached
  // the intended property and return its value
  if (props.length === 0) {
    return obj;
  }

  // Prepare our found property and path array for recursion
  var foundSoFar = obj[props[0]];
  var remainingProps = props.slice(1);

  return deep(foundSoFar, remainingProps, defaultValue);
};

var deepGet = function deepGet(obj, props, defaultValue) {
  // If we have reached an undefined/null property
  // then stop executing and return the default value.
  // If no default is provided it will return undefined.
  if (obj === undefined || obj === null) {
    return defaultValue;
  }

  // If the path array has no more elements, we've reached
  // the intended property and return its value
  if (props.length === 0) {
    return obj;
  }

  // Prepare our found property and path array for recursion
  var foundSoFar = obj[props[0]];
  var remainingProps = props.slice(1);

  return deepGet(foundSoFar, remainingProps, defaultValue);
};

var toArrayFilter = function toArrayFilter(o, r) {
  return isObject(o) ? (0, _keys2.default)(o).filter(function (t) {
    return r.test(t);
  }).map(function (t) {
    return o[t];
  }) : [];
};

var filterKeys = function filterKeys(o, r) {
  return isObject(o) ? (0, _keys2.default)(o).filter(function (t) {
    return r.test(t);
  }).reduce(function (n, t) {
    return set(n, t, o[t]);
  }, {}) : {};
};

var cast = function cast(fields, props) {
  var items = isObject(fields) ? (0, _keys2.default)(fields) : [];
  var item = items.reduce(function (acc, val) {
    return set(acc, val, get(props, val, fields[val]));
  }, {});
  if (has(props, '_id')) {
    set(item, '_id', get(props, '_id', 0));
    // item['_id'] = get(props, '_id', 0)
  }
  return item;
};

var createFilter = exports.createFilter = function createFilter(fields, props) {
  return (0, _keys2.default)(fields).reduce(function (acc, val) {
    return has(props, val) ? set(acc, val, get(props, val, fields[val])) : acc;
  }, {});
};

var changeKey = exports.changeKey = function changeKey(o, key, f) {
  var def = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : '';
  return set(o, key, f(get(o, key, def)));
};

var deepChangeKey = exports.deepChangeKey = function deepChangeKey(o, key, f) {
  var def = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : '';
  return (0, _keys2.default)(o).reduce(function (a, c) {
    return set(a, c, changeKey(o[c], key, f, def));
  }, {});
};

var toURL = function toURL(o) {
  return (0, _keys2.default)(o).map(function (k) {
    return encodeURIComponent(k) + '=' + encodeURIComponent(o[k]);
  }).join('&');
};

// ========= Exports
var obj = exports.obj = {
  has: has,
  get: get,
  set: set,
  deep: deep,
  deepGet: deepGet,
  changeKey: changeKey,
  deepChangeKey: deepChangeKey,
  isEmpty: isEmpty,
  toArray: toArray,
  toArrayFilter: toArrayFilter,
  cast: cast,
  createFilter: createFilter,
  filterKeys: filterKeys,
  isObject: isObject,
  toURL: toURL
};

exports.default = obj;