I want to split the statement array into 2 different lines in RUBY:
statement = ["Statement1", "Statement2"] This is how I am splitting the array
result = statement.split(", ") The output what I want is:
Statement1 Statement2 But I am getting the error as:
undefined method `split' for ["Statement1", "Statement2"]:Array (NoMethodError) Can someone please help me? Thanks in advance
You can iterate over the array.
stmtAry = ["Statement1", "Statement2"] stmtAry.each{|i| puts i} You can directly output each statement without iterating on them if you don't need any other operation other than printing out.
stmtAry = ["Statement1", "Statement2"] puts stmtAry Both codes provides the same output:
Output:
Statement1 Statement2 
IO#puts with an Array will already put each element on its own line without the need to iterate using #each.
It doesn't go much shorter :
puts statement # Statement1 # Statement2 From the puts documentation :
If called with an array argument, writes each element on a new line.
If you want to get just one string from your array, you could use Array#join, which is the opposite of String#split :
statement.join("\n") It returns one string :
"Statement1\nStatement2" when displayed with puts :
Statement1 Statement2 Your are trying call split method of Array class but Array class doesn't have this method.
You can check whether method is existed in calling class or not by using this way
statement = ["Statement1", "Statement2"] statement.methods [:inspect, :to_s, :to_a, :to_h, :to_ary, :frozen?, :==, :eql?, :hash, :[], :[]=, :at, :fetch, :first, :last, :concat, :<<, :push, :pop, :shift, :unshift, :insert, :each, :each_index, :reverse_each, :length, :size, :empty?, :find_index, :index, :rindex, :join, :reverse, :reverse!, :rotate, :rotate!, :sort, :sort!, :sort_by!, :collect, :collect!, :map, :map!, :select, :select!, :keep_if, :values_at, :delete, :delete_at, :delete_if, :reject, :reject!, :zip, :transpose, :replace, :clear, :fill, :include?, :<=>, :slice, :slice!, :assoc, :rassoc, :+, :*, :-, :&, :|, :uniq, :uniq!, :compact, :compact!, :flatten, :flatten!, :count, :shuffle!, :shuffle, :sample, :cycle, :permutation, :combination, :repeated_permutation, :repeated_combination, :product, :take, :take_while, :drop, :drop_while, :bsearch, :any?, :pack, :entries, :sort_by, :grep, :find, :detect, :find_all, :flat_map, :collect_concat, :inject, :reduce, :partition, :group_by, :all?, :one?, :none?, :min, :max, :minmax, :min_by, :max_by, :minmax_by, :member?, :each_with_index, :each_entry, :each_slice, :each_cons, :each_with_object, :chunk, :slice_before, :slice_after, :slice_when, :lazy, :nil?, :===, :=~, :!~, :class, :singleton_class, :clone, :dup, :itself, :taint, :tainted?, :untaint, :untrust, :untrusted?, :trust, :freeze, :methods, :singleton_methods, :protected_methods, :private_methods, :public_methods, :instance_variables, :instance_variable_get, :instance_variable_set, :instance_variable_defined?, :remove_instance_variable, :instance_of?, :kind_of?, :is_a?, :tap, :send, :public_send, :respond_to?, :extend, :display, :method, :public_method, :singleton_method, :define_singleton_method, :object_id, :to_enum, :enum_for, :equal?, :!, :!=, :instance_eval, :instance_exec, :__send__, :__id__] So there is no split method in this above response that's why your are getting this error.
So if you face any issue in future like this and it would help you.
Array.public_method_defined?(:split) #=> false this will tell you if that class or an instance of that class has a method defined by name (excludes private and protected methods).
.first/.last. A list is already split, why split it again?