d3.js - svg map wont display with d3 & geoJSON -


i'm attempting create dynamic map d3. converted shapefile geojson, tried create svg image , bind geojson data using d3. visible on page blank or white svg image (700 x 700). how reveal map? code shown below:

$(function() {  var canvas = d3.select("body").append("svg")   .attr("width", 700)   .attr("height", 700)  d3.json("nysd.geojson", function(data) {   var group = canvas.selectall("g")     .data(data.features)     .enter()     .append("g")    var projection = d3.geo.mercator().scale(5000).translate([0,1980]);   var path = d3.geo.path().projection(projection);    var areas = group.append("path")       .attr("d", path)       .attr("class", "area")       .attr("fill", steelblue); });  });


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