JavaScript 的 getYear() 和 getFullYear() 函数之间有什么区别？
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What's the difference between JavaScript's getYear() and getFullYear() functions?
提问by Thilo
I was working with JavaScript's Dateobject, and somewhere for the first time I needed to extract the year part of the date. What I saw was a weird behavior. It returns 113instead of 2013and I can't figure out how these two numbers might be related, except that the last two numbers might be the same.
我正在使用 JavaScript 的Date对象，并且在某个地方我第一次需要提取日期的年份部分。我看到的是一种奇怪的行为。它返回113而不是2013，我无法弄清楚这两个数字可能如何相关，除了最后两个数字可能相同。
var date = new Date();
console.log(date.getYear()); // prints 113
console.log(date.getFullYear()); // prints 2013
How these functions are different? And why having a function to getFullYear?
It just makes no sense to me to get partof a year.
这些功能有何不同？为什么有一个功能getFullYear？参加一年对我来说毫无意义。
回答by Thilo
It just makes no sense to me to get part of a year.
参加一年对我来说毫无意义。
Back in the day, when memory was expensive and the Year 2000 was far in the future, it did make sense for people to represent 1975 as 75. In retrospect a short-sighted decision.
回到过去，当内存价格昂贵且 2000 年遥遥无期时，人们将 1975 年表示为 75 确实是有道理的。回想起来，这是一个短视的决定。
date.getFullYear() == date.getYear() + 1900
回答by SpaceCowboy
getYear() returns the year - 1900, This has been deprecated for a while now, it's best to use getFullYear()
getYear() 返回年份 - 1900，这已经被弃用了一段时间，最好使用 getFullYear()
回答by CuriousMind
Its a Y2K thing, basically getYearmethod returns the year minus 1900.
它是 Y2K 的事情，基本上getYear方法返回年份减去 1900。
so, I encourage to move over to getFullYear& use that instead.
所以，我鼓励转向getFullYear并使用它。
