如何检查一个单词是否已经全部大写? [英] How can I check a word is already all uppercase?

问题描述

我希望能够检查一个单词是否已经全部大写.它还可能包含数字.

I want to be able to check if a word is already all uppercase. And it might also include numbers.

示例:

GO234 => yes
Go234 => no

推荐答案

您可以将字符串与相同但大写的字符串进行比较:

You can compare the string with the same string but in uppercase:

'go234' == 'go234'.upcase  #=> false
'GO234' == 'GO234'.upcase  #=> true

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