37. Pangrams

The sentence 'A quick brown fox jumps over the lazy dog' contains every single letter in the alphabet. Such sentences are called pangrams. You are to write a program, which takes a sentence, and returns all the letters it is missing (which prevent it from being a pangram). You should ignore the case of the letters in sentence, and your return should be all lower case letters, in alphabetical order. You should also ignore all non US-ASCII characters.In case the input sentence is already a pangram, print out the string NULL

by Donal Devine

HTML

<div id="divConsole"></div>

CSS

.console-output
{
    font-family: monospace;
    margin: 1px;
}

JavaScript

console = {
    log: function (s) {        
        divConsole.innerHTML += 
            "<p class=\"console-output\">" + s + "</p>";
    }
};

var foo = function(s) {    
    var a = s.split(',');	
    return a[0].lastIndexOf(a[1]) == a[0].length - a[1].length ? 1 : 0;		     
};


console.log(foo("Hello World,World"));
console.log(foo("Hello CodeEval,CodeEval"));
console.log(foo("San Francisco,San Jose"));