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@wayspurrchen
Last active August 29, 2015 14:13
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Grab and list all (unique) classes on page
var cls = [];
Array.prototype.slice.call( document.querySelectorAll('*'), 0 ).forEach( function ( el ) {
cls = cls.concat( Array.prototype.slice.call( el.classList, 0 ) );
} );
cls = cls.reduce( function ( p, c ) {
if ( p.indexOf( c ) < 0 ) p.push( c );
return p;
}, [] );
console.log( cls );
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