moltres-utils/dist/data/hasPath.js

Utils for Moltres apps

"use strict";

require("core-js/modules/es6.object.define-property");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _curry = _interopRequireDefault(require("../common/curry"));

var _getProp = _interopRequireDefault(require("./getProp"));

var _hasProp = _interopRequireDefault(require("./hasProp"));

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

/**
 * Returns whether or not a path exists in an object. Only the object's
 * own properties are checked.
 *
 * @function
 * @since v0.0.3
 * @category data
 * @typedefn Idx = String | Int
 * @sig [Idx] -> {a} -> Boolean
 * @param {Array} path The path to use.
 * @param {Object} obj The object to check the path in.
 * @returns {Boolean} Whether the path exists.
 * @example
 *
 * hasPath(['a', 'b'], {a: {b: 2}})          // => true
 * hasPath(['a', 'b'], {a: {b: undefined}})  // => true
 * hasPath('a.b', {a: {c: 2}})               // => false
 * hasPath([], {})                           // => true
 */
var hasPath = (0, _curry.default)(function (path, obj) {
  if (path.length === 0) {
    return !!obj;
  }

  var val = obj;
  var idx = 0;

  while (idx < path.length) {
    if ((0, _hasProp.default)(path[idx], val)) {
      val = (0, _getProp.default)(path[idx], val);
      idx += 1;
    } else {
      return false;
    }
  }

  return true;
});
var _default = hasPath;
exports.default = _default;
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