index.js
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import requiredArgs from '../_lib/requiredArgs/index.js';
/**
* @name toDate
* @category Common Helpers
* @summary Convert the given argument to an instance of Date.
*
* @description
* Convert the given argument to an instance of Date.
*
* If the argument is an instance of Date, the function returns its clone.
*
* If the argument is a number, it is treated as a timestamp.
*
* If the argument is none of the above, the function returns Invalid Date.
*
* **Note**: *all* Date arguments passed to any *date-fns* function is processed by `toDate`.
*
* @param {Date|Number} argument - the value to convert
* @returns {Date} the parsed date in the local time zone
* @throws {TypeError} 1 argument required
*
* @example
* // Clone the date:
* const result = toDate(new Date(2014, 1, 11, 11, 30, 30))
* //=> Tue Feb 11 2014 11:30:30
*
* @example
* // Convert the timestamp to date:
* const result = toDate(1392098430000)
* //=> Tue Feb 11 2014 11:30:30
*/
export default function toDate(argument) {
requiredArgs(1, arguments);
var argStr = Object.prototype.toString.call(argument); // Clone the date
if (argument instanceof Date || typeof argument === 'object' && argStr === '[object Date]') {
// Prevent the date to lose the milliseconds when passed to new Date() in IE10
return new Date(argument.getTime());
} else if (typeof argument === 'number' || argStr === '[object Number]') {
return new Date(argument);
} else {
if ((typeof argument === 'string' || argStr === '[object String]') && typeof console !== 'undefined') {
// eslint-disable-next-line no-console
console.warn("Starting with v2.0.0-beta.1 date-fns doesn't accept strings as date arguments. Please use `parseISO` to parse strings. See: https://git.io/fjule"); // eslint-disable-next-line no-console
console.warn(new Error().stack);
}
return new Date(NaN);
}
}