wtf-is-this/lib/index.es.js

Type checker for JS

function _typeof(obj) {
  if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") {
    _typeof = function (obj) {
      return typeof obj;
    };
  } else {
    _typeof = function (obj) {
      return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj;
    };
  }

  return _typeof(obj);
}

/*
globals
Symbol
*/
var isString = function isString(i) {
  return typeof i === "string" || i instanceof String;
};
var isArray = function isArray(i) {
  return Array.isArray(i);
};
var isObject = function isObject(i) {
  if (i === null || isArray(i)) {
    return false;
  }

  return typeof i === "function" || _typeof(i) === "object";
};
var isDate = function isDate(value) {
  var getDay = Date.prototype.getDay;

  var tryDateObject = function tryDateGetDayCall(value) {
    try {
      getDay.call(value);
      return true;
    } catch (e) {
      return false;
    }
  };

  var toStr = Object.prototype.toString;
  var dateClass = "[object Date]";
  var hasToStringTag = typeof Symbol === "function" && _typeof(Symbol.toStringTag) === "symbol";

  if (_typeof(value) !== "object" || value === null) {
    return false;
  }

  return hasToStringTag ? tryDateObject(value) : toStr.call(value) === dateClass;
};
var isFunction = function isFunction(i) {
  return i && {}.toString.call(i) === "[object Function]";
};
var isFloat = function isFloat(n) {
  return Number(n) === n && n % 1 !== 0;
};
var isInteger = function isInteger(n) {
  return Number(n) === n && n % 1 === 0;
};
var isNumber = function isNumber(n) {
  return isFloat(n) || isInteger(n);
};
var isEmpty = function isEmpty(value) {
  if (value === null) return true;
  if (value === undefined) return true;
  if (isObject(value) && !Object.keys(value).length) return true;
  if (!value.length) return true;
};
var isRegExp = function isRegExp(input) {
  return Object.prototype.toString.call(input) === "[object RegExp]";
};
var isBoolean = function isBoolean(input) {
  return input === true || input === false;
};
var isISO8601 = function isISO8601(input) {
  var re = /^(-?(?:[1-9][0-9]*)?[0-9]{4})-(1[0-2]|0[1-9])-(3[01]|0[1-9]|[12][0-9])T(2[0-3]|[01][0-9]):([0-5][0-9]):([0-5][0-9])(.[0-9]+)?(Z)?$/;
  return re.test(input);
};
var isNull = function isNull(i) {
  return i == null || i == undefined;
};
var isColor = function isColor(input) {
  if (isString(input)) {
    var re = /#(?:[a-f\d]{3}){1,2}\b|rgb\((?:(?:\s*0*(?:25[0-5]|2[0-4]\d|1?\d?\d)\s*,){2}\s*0*(?:25[0-5]|2[0-4]\d|1?\d?\d)|\s*0*(?:100(?:\.0+)?|\d?\d(?:\.\d+)?)%(?:\s*,\s*0*(?:100(?:\.0+)?|\d?\d(?:\.\d+)?)%){2})\s*\)|hsl\(\s*0*(?:360|3[0-5]\d|[12]?\d?\d)\s*(?:,\s*0*(?:100(?:\.0+)?|\d?\d(?:\.\d+)?)%\s*){2}\)|(?:rgba\((?:(?:\s*0*(?:25[0-5]|2[0-4]\d|1?\d?\d)\s*,){3}|(?:\s*0*(?:100(?:\.0+)?|\d?\d(?:\.\d+)?)%\s*,){3})|hsla\(\s*0*(?:360|3[0-5]\d|[12]?\d?\d)\s*(?:,\s*0*(?:100(?:\.0+)?|\d?\d(?:\.\d+)?)%\s*){2},)\s*0*(?:1(?:\.0+)?|0(?:\.\d+)?)\s*\)/gi;
    var results = input.match(re);

    if (results) {
      if (results.length == 1) {
        if (results[0] == input) {
          return true;
        }
      }
    }
  }

  return false;
};
var index = {
  string: isString,
  object: isObject,
  date: isDate,
  fn: isFunction,
  array: isArray,
  float: isFloat,
  integer: isInteger,
  number: isNumber,
  regexp: isRegExp,
  boolean: isBoolean,
  empty: isEmpty,
  ISO8601: isISO8601,
  color: isColor,
  null: isNull
};

export default index;
export { isArray, isBoolean, isColor, isDate, isEmpty, isFloat, isFunction, isISO8601, isInteger, isNull, isNumber, isObject, isRegExp, isString };
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