Javascript date.getYear() 在 2011 年返回 111？
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Javascript date.getYear() returns 111 in 2011?
提问by JK.
I have this javascript for automatically setting a date filter to the first and last day of the previous month:
我有这个 javascript 自动将日期过滤器设置为上个月的第一天和最后一天：
$(document).ready(function () {
$("#DateFrom").datepicker({ dateFormat: 'dd/mm/yy' });
$("#DateTo").datepicker({ dateFormat: 'dd/mm/yy' });
var now = new Date();
var firstDayPrevMonth = new Date(now.getYear(), now.getMonth() - 1, 1);
var firstDayThisMonth = new Date(now.getYear(), now.getMonth(), 1);
var lastDayPrevMonth = new Date(firstDayThisMonth - 1);
$("#DateFrom").datepicker("setDate", firstDayPrevMonth);
$("#DateTo").datepicker("setDate", lastDayPrevMonth);
});
BUT now.getYear()is returning 111 instead of the expected 2011. Is there something obvious I've missed?
但是now.getYear()返回 111 而不是预期的 2011。有什么明显的我错过了吗？
回答by deceze
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/getYear
https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/getYear
getYearis no longer used and has been replaced by thegetFullYearmethod.The
getYearmethod returns the year minus 1900; thus:
- For years greater than or equal to 2000, the value returned by
getYearis 100 or greater. For example, if the year is 2026,getYearreturns 126.- For years between and including 1900 and 1999, the value returned by
getYearis between 0 and 99. For example, if the year is 1976,getYearreturns 76.- For years less than 1900, the value returned by
getYearis less than 0. For example, if the year is 1800,getYearreturns -100.- To take into account years before and after 2000, you should use
getFullYearinstead ofgetYearso that the year is specified in full.
getYear不再使用，已被getFullYear方法取代。该
getYear方法返回年份减去 1900；因此：
- 对于大于或等于 2000 年的年份，返回的
getYear值为 100 或更大。例如，如果年份是 2026，则getYear返回 126。- 对于 1900 年和 1999 年之间（包括 1900 年和 1999 年），返回的值
getYear介于 0 和 99 之间。例如，如果年份是 1976 年，则getYear返回 76。- 对于小于 1900
getYear的年份，getYear返回的值小于 0。例如，如果年份为 1800，则返回 -100。- 要考虑 2000 年之前和之后的年份，您应该使用
getFullYear代替，getYear以便完整指定年份。
回答by SLaks
In order to comply with boneheaded precedent, getYear()returns the number of years since 1900.
为了遵守笨蛋的先例，getYear()返回自 1900 年以来的年数。
Instead, you should call getFullYear(), which returns the actual year.
相反，您应该调用getFullYear()，它返回实际年份。
回答by Pazuzu156
From what I've read on Mozilla's JS pages, getYear is deprecated. As pointed out many times, getFullYear()is the way to go. If you're really wanting to use getYear()add 1900 to it.
根据我在 Mozilla 的 JS 页面上阅读的内容，不推荐使用 getYear。正如多次指出的那样，getFullYear()是要走的路。如果你真的想使用getYear()添加 1900 到它。
var now = new Date(),
year = now.getYear() + 1900;
