JavaScript使用正则表达式查找单词；19XX“；或；18XX“；一丝不苟

我试图通过一个字符串查找19XX或18XX格式的日期，其中XX可以是任何整数。以下是基本设置：

var myLongString = "The Cold War (Russian: Холо́дная война́, Kholodnaya voĭna) was the continuing state from roughly 1946 to 1991 of political conflict...";

function getDates(myLongString) {
    //use regular expressions to create a list of words in the "19XX" or "18XX" format
    //and then return that list

}

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谢谢你的帮助

我会加上分词，否则你也会匹配数字的部分，比如19222和91822

return myLongString.match(/\b1[98]\d\d\b/g);