javascript - .style("background-position", function(){...}) not populating the attribute -

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full code here: http://jsfiddle.net/rczun/5/

the important part @ end wish use sample data set correct "background-position" element according data set, log displays there iteration , data it's still not being assigned.

var container = d3.select('.icon-selection-container').attr('width',500);  var s = container.selectall('.icon') .data(icon_defs);  s.enter() .append('div') .attr({     class : 'icon icon-book' }) .style("background-image", "url('http://static.mabelslabels.com/images/booklabels2.png')") .style("background-position", function(d,i) {         var bgpos = d.style.slice(20);//clean sample data         console.log(bgpos);         return bgpos;         }     );

you need remove ; @ end of value, work 

var bgpos = d.style.slice(21,-1);

http://jsfiddle.net/rczun/6/


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