如何查看字符串是否以多个字符之一结尾 [英] How to see if a string ends with one of multiple characters

问题描述

我有这句话:

string_tokens[-1].ends_with?(",") || string_tokens[-1].ends_with?("-") || string_tokens[-1].ends_with?("&")

我想将所有标记(","，"-"，"&")放入一个常量中，并简化以上内容以询问字符串是否以这些字符中的任何一个结尾"，但是我不知道该怎么做.

I would like to put all the tokens (",", "-", "&") into a constant and simplify the above to ask, "does the string end with any of these characters", but I'm not sure how to do that.

推荐答案

是.

CONST = %w(, - &).freeze
string_tokens[-1].end_with?(*CONST)

用法:

'test,'.end_with?(*CONST)
#=> true
'test&'.end_with?(*CONST)
#=> true
'test-'.end_with?(*CONST)
#=> true

您使用*(splat运算符)将多个args传递给

You use * (splat operator) to pass multiple args to the String#end_with?, because it accepts multiple.

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