Write a method 'valid_string?' that accepts a string. It returns true if the brackets, parentheses, and curly braces close correctly. It returns false otherwise.
valid_string?("[ ]") # returns true
valid_string?("[ ") # returns false
valid_string?("[ ( text ) {} ]") # returns true
valid_string?("[ ( text { ) } ]") # returns false
My code: Is returning false for everything. Even tried using explicit booleans for individual cases {} || () ||, etc. Did not work. Either returns true or false for everything. Is it my driver code?
def valid_string?(str)
if str == ("\[\s+]")
true
else
false
end
end
UPDATED SOLUTION:------------------------------------------------ Yes! #match definitely worked out better! Although my last line of test code is evaluating to true. When it should be false. . .
def valid_string?(str)
if str.match "(\\[.+\\])" || "|(\\(\\))" || "|({})"
return true
else
return false
end
end
puts valid_string?("[ ]") # returns true
puts valid_string?("[ ") # returns false
puts valid_string?("[ ( text ) {} ]") # returns true
puts valid_string?("[ ( text { ) } ]") # returns false