aaac7fed
 liuqimichale
add
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'use strict';
var getDay = Date.prototype.getDay;
var tryDateObject = function tryDateObject(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';
module.exports = function isDateObject(value) {
if (typeof value !== 'object' || value === null) { return false; }
return hasToStringTag ? tryDateObject(value) : toStr.call(value) === dateClass;
};
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