javascript - Access a specific path element using given ID -

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i using topojson , world-110m.json visualize map of world. trying change fill property of 2 particular countries click event.

the first country selected click user side , id of path retrieved using:

var current_country = d3.select(this).style("fill", "red"); var current_country_id = d3.select(this).attr('id');

the second country changed given (does not matter) , defined id. have tried using this:

var top = d3.select("path#643").style("fill", "green");

as suggested here: how select d3 svg path particular id

seems pretty straight forward same error no matter try:

uncaught syntaxerror: failed execute 'queryselector' on 'document': 'path#643' not valid selector.

i have tried many things (all combinations come mind) , have seen lot of similar questions posted here have failed find proper solution. path id in fact exist. , of countries stored in world variable , seem ok me.

here full code:

    var width = 2000;     var height = 2000;      var svg = d3.select("body").append("svg")               .attr("width", width)                .attr("height", height);      var projection = d3.geo.mercator()               .center([50,70])                .scale(150)                .rotate([0,0,0]);       var path = d3.geo.path().projection(projection);       var g = svg.append("g");       var country_selector = d3.select("body").append("div").attr("class", "country_selector");       queue()        .defer(d3.json, "world-110m.json")       .defer(d3.csv, "country_data2.csv")       .await(main);      function main(error, world, countrydata){          var country_names = {};          var countries = topojson.feature(world, world.objects.countries).features;          countrydata.foreach(function(d) {         country_names[d.id] = d.name;          });          var world =  g.selectall("path")                      .data(countries)                     .enter()                     .append("svg:path")                     .attr("d", path)                     .attr("id", function(d) { return d.id; })                     .attr("class", function(d) { return d.id; })                     .on("mouseover", function(d) {                     country_selector.text(country_names[d.id])                     .style("left", (d3.event.pagex + 7) + "px")                     .style("top", (d3.event.pagey - 15) + "px")                     .style("display", "block")                     .style("opacity", 0.8);                     })                     .on("mouseout", function(d) {                     country_selector.style("opacity", 0)                     .style("display", "none");                     })                     .on("mousemove", function(d) {                     country_selector.style("left", (d3.event.pagex + 7) + "px")                     .style("top", (d3.event.pagey - 15) + "px");                     })                     .on("click", function(d) { // rouble part                     var current_country = d3.select(this).style("fill", "red")                     var current_country_id = d3.select(this).attr('id')                     console.log(current_country)                     console.log(current_country_id)                     console.log(world)                     var top = d3.select("path#643").style("fill", "green"); // bad guy                     console.log(top)                     })       }; // end of main function      var zooming = d3.behavior.zoom()                  .on("zoom",function() {                       g.attr("transform","translate("+                          d3.event.translate.join(",")+")scale("+d3.event.scale+")");                     g.selectall("path")                           .attr("d", path.projection(projection));                  });      svg.call(zooming).on("dblclick.zoom", null);

any appreciated.

ids can't start numbers. id invalid. can change id in html _643, in javascript 

var top = d3.select("path#_643").style("fill", "green");

here's example using css show id validity

#643 {  	background-color: orange;  	color: #fff;  }  #_643 {  	background-color: orange;  	color: #fff;  }  #-643 {  	background-color: orange;  	color: #fff;  }  #six43 {  	background-color: orange;  	color: #fff;  }
<ul>  	<li id="643">643</li>  	<li id="_643">_643</li>  	<li id="-643">-643</li>  	<li id="six43">six43</li>  </ul>


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