d2-ui/node_modules-v25.0.x/d2-utilizr/lib/isEmpty.js

d2-ui

'use strict';

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

var _isArray = require('./isArray');

var _isArray2 = _interopRequireDefault(_isArray);

var _lodash = require('lodash.ismap');

var _lodash2 = _interopRequireDefault(_lodash);

var _lodash3 = require('lodash.isset');

var _lodash4 = _interopRequireDefault(_lodash3);

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

/**
 * Check if a value is concidered _empty_. An _empty_ value is an empty `Set`, `Map` or `Array`.
 * Depending on if the `allowEmptyString` flag, empty strings are also considered _empty_
 *
 * @param {*} param Value to check
 * @param {boolean} allowEmptyString When set to true an empty string will not be considered _empty_.
 * @returns {boolean} Returns `true` when the value is _empty_, otherwise false
 *
 * @example
 * isEmpty(''); // Returns: true
 * isEmpty('', true); // Returns: false
 * isEmpty(null); // Returns: true
 * isEmpty(new Map()); // Returns: true
 */
function isEmpty(param, allowEmptyString) {
  return param == null || (!allowEmptyString ? param === '' : false) || (0, _isArray2.default)(param) && param.length === 0 || ((0, _lodash2.default)(param) || (0, _lodash4.default)(param)) && param.size === 0;
}
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