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backend/node_modules/date-fns/isExists/index.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = isExists;
+/**
+ * @name isExists
+ * @category Common Helpers
+ * @summary Is the given date exists?
+ *
+ * @description
+ * Checks if the given arguments convert to an existing date.
+ *
+ * @param {Number} year of the date to check
+ * @param {Number} month of the date to check
+ * @param {Number} day of the date to check
+ * @returns {Boolean} the date exists
+ * @throws {TypeError} 3 arguments required
+ *
+ * @example
+ * // For the valid date:
+ * const result = isExists(2018, 0, 31)
+ * //=> true
+ *
+ * @example
+ * // For the invalid date:
+ * const result = isExists(2018, 1, 31)
+ * //=> false
+ */
+function isExists(year, month, day) {
+  if (arguments.length < 3) {
+    throw new TypeError('3 argument required, but only ' + arguments.length + ' present');
+  }
+  var date = new Date(year, month, day);
+  return date.getFullYear() === year && date.getMonth() === month && date.getDate() === day;
+}
+module.exports = exports.default;