Most Common
Given an array of regex patterns and a block of text, find the input pattern with the most matches in the text
Usage
var inputs = [
'a1',
'a2',
'a3',
'a4'
];
var text = 'Lorem a1 ipsum a1 dolor a1 sit a2 amet, a2 consectetur a3 adipiscing'
// max should be 'a1'
var max = mostcommon(inputs, text);