ruby - 用ruby语言在字符串中查找数组的元素

Question

在字符串中查找数组元素的有效且直接的代码是什么。例如：

a = Array['aaa', 'bbb', 'ccc', 'ddd', 'eee']

b = "This is the sample string with aaa , blah blah"

c = someFunction(b, a)
puts c
=> ['aaa']

假设一个数组有 100 个元素，我想知道在字符串中找到了哪个数组元素。我应该匹配确切的单词。所以 xbbb, bbaa, ... 不匹配。

标签： ruby

Answer 1

我认为这是可能的解决方案之一：

def some_method(string, array)
  string.split & array
end

a = Array['aaa', 'bbb', 'ccc', 'ddd', 'eee']
b = "This is the sample string with aaa , blah blah"
> some_method(b, a)
=> ['aaa']

a = Array['aaa', 'bbb', 'ccc', 'ddd', 'eee']
b = "This is the sample string with xaaa , blah blah"
> some_method(b, a)
=> []