javascript - Debugging Incorrectly Displaying Bars -

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my bars should alternate through background, similar done in jsfiddle: fiddle. ends looking like: picture.

this code should trick (but doesn't):

svg.selectall("g.grid")     .data(y.ticks()).enter()     .append("g").attr("class", "grid")     .select("rect")         .data(x.ticks())         .enter()         .append("rect")         .attr("y", function(d, i, j) {                 return yscale(i);         })         .attr("width", width)         .attr("height", (yscale.rangeband()))         .attr("fill", function(d, i) {             return ((i) % 2) == 1 ? "white" : "lightgrey";         });

and entire code of i'm working with: code

and fiddle of code here.

you had right except y had wrong elements


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