Count number of edits & bytes changed on Wikipedia user's Contributions page

count-edits.js

(function(){
    // Wikipedia ships with jQuery v1.8.3 as of 5/14/13
    // will only count edits on the page
    // if editor has >50 edits need to up the display limit
    var numEdits = $( 'ul' ).eq( 0 ).find( 'li' ).length,
        bytesChanged = 0;
    $( '.mw-plusminus-pos, .mw-plusminus-neg' ).each( function ( el, index ) {
        // text looks like (+###) where # of digits is variable
        // e.g. (+3), (-45), (+1,479)
        // so remove any commas, first 2 chars, last char, & parse as int
        var text = $( this ).text().replace( ',', '' ),
            len = text.length,
            bytesThisEdit = parseInt( text.substr( 2, len - 3 ), 10 );
        bytesChanged += bytesThisEdit;
    });
    prompt( "Hit Ctrl+C to copy.", numEdits + "\t" + bytesChanged );
}());