检查一个字符串是否包含多个子字符串之一

问题描述

我有一个很长的字符串变量，想知道它是否包含两个子字符串之一.

I've got a long string-variable and want to find out whether it contains one of two substrings.

例如

haystack = 'this one is pretty long'
needle1 = 'whatever'
needle2 = 'pretty'

现在，我需要像这样的析取符，尽管它在Ruby中不起作用:

Now I'd need a disjunction like this which doesn't work in Ruby though:

if haystack.include? needle1 || haystack.include? needle2
    puts "needle found within haystack"
end

推荐答案

尝试在表达式中使用括号:

Try parens in the expression:

 haystack.include?(needle1) || haystack.include?(needle2)

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