+++ unique1 word list of html page [innerHTML, unique]

function unique1(a){for(var c=Object.create(null),d=[],b=a.length;b--;)c[a[b]]||(c[a[b]]=!0,d.push(a[b]));return d};
unique1(document.body.innerHTML.match(/\w+/gim)).sort().join(", ");