javascript字符串比较和比较运算符不起作用？

Question

我正在编写 shelley powers 编写的 javascript 食谱。在书中，

If two string literals only vary based on case, the uppercase characters are lexically greater than the lowercase letter:

var sOne  = "Cat";
var sTwo  = "cat";
if (sOne >=  sTwo) // true, because 'C' is lexically greater than 'c'

但我无法得到相同的结果。这仅适用于我:

 var sOne = "Cat";
 var sTwo = "cat";
 if (sOne < sTwo) alert("whatever here"); 

这里弹出一个警报。我很困惑。谢谢大家!

Answer 1

这本书有误。它列于 the errata .