40 lines
1.3 KiB
JavaScript
40 lines
1.3 KiB
JavaScript
function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }
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import requiredArgs from "../_lib/requiredArgs/index.js";
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/**
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* @name isDate
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* @category Common Helpers
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* @summary Is the given value a date?
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*
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* @description
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* Returns true if the given value is an instance of Date. The function works for dates transferred across iframes.
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*
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* @param {*} value - the value to check
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* @returns {boolean} true if the given value is a date
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* @throws {TypeError} 1 arguments required
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*
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* @example
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* // For a valid date:
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* const result = isDate(new Date())
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* //=> true
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*
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* @example
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* // For an invalid date:
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* const result = isDate(new Date(NaN))
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* //=> true
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*
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* @example
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* // For some value:
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* const result = isDate('2014-02-31')
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* //=> false
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*
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* @example
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* // For an object:
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* const result = isDate({})
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* //=> false
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*/
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export default function isDate(value) {
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requiredArgs(1, arguments);
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return value instanceof Date || _typeof(value) === 'object' && Object.prototype.toString.call(value) === '[object Date]';
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} |