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