How to check whether an array contains a substring within a string in Ruby?

Question

I have an array of strings:

string_array = ['memberid', 'membershiptype', 'date']

Now I need to check whether or not this array contains 'id', and I want it to return true.

I know I can do string_array.include? 'memberid', but I need to find a substring within that string of 'id'.

Answer 1

string_array.any? { |e| e.include? 'id' }

any? returns true if any of the elements in the array are true for the given predicate (i.e. the block passed to any?)