Problem Statement

A pangram is a sentence that contains all the letters of the English alphabet at least once. For example:   The quick brown fox jumps over the lazy dog.

Write a function or method to check a sentence to see if it is a   pangram   (or not)   and show its use.

Let's start with the solution:

require 'strings'
isPangram=: (a. {~ 97+i.26) */@e. tolower


   isPangram 'The quick brown fox jumps over the lazy dog.'
1
   isPangram 'The quick brown fox falls over the lazy dog.'
0