typescript 打字稿认为 getYear 在 Date 类型上不存在
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Typescript thinks getYear does not exist on type Date
提问by A. Duff
I'm running tsc inside a webpack project, with "core-js": "registry:dt/core-js#0.0.0+20160725163759"and "node": "registry:dt/node#6.0.0+20160909174046"
我在 webpack 项目中运行 tsc，"core-js": "registry:dt/core-js#0.0.0+20160725163759"并使用"node": "registry:dt/node#6.0.0+20160909174046"
Other date properties work fine:
其他日期属性工作正常：
private dateToString (date: Date) {
let month = date.getMonth();
let day = date.getDate();
let year = date.getYear() + 1900;
let dateString = `${month}/${day}/${year}`;
return dateString;
}
Typescript recognizes date.getMonthand date.getDatejust fine, but on date.getYearit gives
打字稿识别date.getMonth并且date.getDate很好，但在date.getYear它上面给出
Property 'getYear' does not exist on type 'Date'.
Property 'getYear' does not exist on type 'Date'.
What definition am I missing?
我缺少什么定义？
回答by Drew Noakes
That API is deprecated. Try getFullYear()instead.
该 API 已弃用。试试吧getFullYear()。
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getYear
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/getYear
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Do not use it in old or new projects. Pages or Web apps using it may break at any time.
The getYear() method returns the year in the specified date according to local time. Because getYear() does not return full years ("year 2000 problem"), it is no longer used and has been replaced by the getFullYear() method.
此功能已从 Web 标准中删除。虽然一些浏览器可能仍然支持它，但它正在被删除。不要在旧项目或新项目中使用它。使用它的页面或 Web 应用程序可能随时中断。
getYear() 方法根据当地时间返回指定日期的年份。由于 getYear() 不返回整年（“2000 年问题”），因此不再使用，并已被 getFullYear() 方法取代。
回答by Jerry Chong
Change this line from
将这一行从
let year = date.getYear() + 1900;
to
到
let year = date.getFullYear();
