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:

var letters=["a".."z"].pump(String); //-->"abcdefghijklmnopqrstuvwxyz"
fcn isPangram(text){(not (letters-text.toLower()))}