moltres-utils/dist/data/hasProp.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 _isFunction = _interopRequireDefault(require("../lang/isFunction"));

var _isMap = _interopRequireDefault(require("../lang/isMap"));

var _isNil = _interopRequireDefault(require("../lang/isNil"));

var _isUndefined = _interopRequireDefault(require("../lang/isUndefined"));

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

/**
 * Returns whether or not an object has an own property with the specified name
 *
 * If prop is a function then it is executed against value as a selector.
 * If prop is undefined then value will be checked for truthiness.
 *
 * @function
 * @since v0.0.3
 * @category data
 * @sig s -> {s: x} -> Boolean
 * @param {String | Function} prop The name of the property to check for.
 * @param {Object | Map} value The value to query.
 * @returns {Boolean} Whether the property exists.
 * @example
 *
 * hasProp('name', {name: 'philipp'})  //=> true
 * hasProp('name', {})                 //=> false
 *
 * hasProp(undefined, {})            //=> true
 * hasProp(undefined, null)          //=> false
 *
 * hasProp((value) => value.name, { name: 'eslam'})     //=> true
 * hasProp((value) => value.birthday, { name: 'raees'}) //=> false
 */
var hasProp = (0, _curry.default)(function (prop, value) {
  if ((0, _isUndefined.default)(prop)) {
    return !!value;
  }

  if ((0, _isFunction.default)(prop)) {
    try {
      return !!prop(value);
    } catch (error) {
      return false;
    }
  }

  if ((0, _isNil.default)(value)) {
    return false;
  }

  if ((0, _isMap.default)(value)) {
    return value.has(prop);
  }

  return Object.prototype.hasOwnProperty.call(value, prop);
});
var _default = hasProp;
exports.default = _default;
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