ruby - 检查Ruby中的数组中是否存在值(Check if a value exists in an array in Ruby)

Question

I have a value 'Dog' and an array ['Cat', 'Dog', 'Bird'] .

(我有一个值'Dog'和一个阵列['Cat', 'Dog', 'Bird'] 。)

How do I check if it exists in the array without looping through it?

(如何在没有循环的情况下检查数组中是否存在？)

Is there a simple way of checking if the value exists, nothing more?

(是否有一种简单的方法来检查值是否存在，仅此而已？)

  ask by user211662 translate from so

Answer 1

You're looking for include?

(你在寻找include?)

:

(：)

>> ['Cat', 'Dog', 'Bird'].include? 'Dog'
=> true