D3 Examples - fresh block tp6

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<!DOCTYPE html>
<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>
​
<body>
  <script>
    // Feel free to change or delete any of the code you see in this editor!
    var svg = d3.select("body").append("svg")
      .attr("width", 960)
      .attr("height", 500)
​
    svg.append("text")
      //.text("Edit the code below to change me!")
      .attr("y", 200)
      .attr("x", 120)
      .style("font-size", 36)
      .style("font-family", "monospace")
    
    var a = ["act1","act2","act3","act4"];
    var myMap = new Map();
    myMap.set([a[0],a[1]], 1);
        myMap.set([a[0],a[1]], 1);
    myMap.set([a[0],a[2]], 1);
    myMap.set([a[0],a[2]], 1);
    myMap.set([a[1],a[3]], 1);
    
    parti = new Set();
    parti.add({act: "act1", parti: 1, couleur: 1});
    parti.add({act: "act2", parti: 1, couleur: 1});
    parti.add({act: "act3", parti: 2, couleur: 2});
    parti.add({act: "act3", parti: 2, couleur: 2});
    
    
    console.log("l "+parti.size);
    console.log({act: "act3", parti: 2, couleur: 2} == {act: "act3", parti: 2, couleur: 2});
    parti.forEach(function(value) {
  console.log(value);
});
    p = new Set();
     p.add(2);
    p.add("A");
    p.add(2);
    p.add("B");
​
    var nodesArray = Array.from(p).map(function(e1,e2){return {v: e1}});
    console.log("nodes "+nodesArray[0].v);
    nodesArray[0].id = "A";
    console.log("nodes "+nodesArray[0].id);
    
    parti = [];
    parti.push({act: "act1", parti: 1, couleur: 1});
    parti.push({act: "act2", parti: 1, couleur: 1});
    parti.push({act: "act3", parti: 2, couleur: 2});
    parti.push({act: "act3", parti: 2, couleur: 2});
    
    console.log(parti.length);
    console.log(parti[0].couleur);
    
  </script>
</body>
​
    