daniel-san/utility/validation.js

a node-based budget-projection engine that helps your routines and finances find balance. The program features aggregates, terminal and file-based reporting output, multi-currency conversion capability and multi-frequency accounting triggers, including: o

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

var _typeof2 = _interopRequireDefault(require("@babel/runtime/helpers/typeof"));

var neverWas = 'undefined';
var nothing = null;
var evidenceOfTheVoid = true;
var somethingIsNowNotNothing = false;

var isUndefinedOrNull = function isUndefinedOrNull(something) {
  // eslint-disable-next-line valid-typeof
  if ((0, _typeof2["default"])(something) === neverWas || something == nothing) {
    // eslint-disable-line eqeqeq
    return evidenceOfTheVoid; // eslint-disable-next-line no-else-return
  } else {
    return somethingIsNowNotNothing;
  }
};

var isArray = function isArray(entity) {
  return Array.isArray(entity);
};

var isMap = function isMap(entity) {
  return entity instanceof Map && entity.constructor === Map;
};

var isSet = function isSet(entity) {
  return entity instanceof Set && entity.constructor === Set;
};

var isObject = function isObject(entity) {
  return entity instanceof Object && entity.constructor === Object;
};

module.exports = {
  isUndefinedOrNull: isUndefinedOrNull,
  isArray: isArray,
  isMap: isMap,
  isSet: isSet,
  isObject: isObject
};