rubymonk makes point on how can use underscores convenience write large numbers can become difficult read without demarcation.
their task is: try using underscores make huge, readable number. provide code:
def describe(something) puts "i a: #{something.class} , like: #{something}" end def big_num # create huge number end describe(big_num) could explain how go creating huge number? according error messages below, have use underscores in code make pass.
rubymonk expects object of class bignum, part of standard ruby library. documentation:
bignum objects hold integers outside range of fixnum. bignum objects created automatically when integer calculations otherwise overflow fixnum.
so have create number bigger fixnum can handle. example, pass rubymonk's spec:
def big_num 5_000_000_000_000_000_000_000 end because number bigger fixnum can handle, ruby automagically returns bignum instead. example, try running this:
5_000_000_000.class # => fixnum 5_000_000_000_000_000_000_000.class # => bignum 
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