<!DOCTYPE html> <body> </body> <script src="d3.v3.min.js" charset="UTF-8"></script> <script> var dataset = [{id: 1000, color: "red"}, {id: 1001, color: "black"}, {id: 1002, color: "green"}, {id: 1003, color: "yellow"}] var map = d3.map(dataset, function(d){ return d.id}); console.log(map.has(1001)); console.log(map.has(1005)); console.log(map.get(1001)); console.log(map.get(1005)); map.set(1001, {id: 1001, color: "silver"}); map.set(1005, {id: 1005, color: "white"}); map.remove(1002); console.log(map.keys()); console.log(map.values()); console.log(map.entries()); map.forEach(function(key, value) { console.log(key); console.log(value); }); console.log(map.empty()); console.log(map.size()); dataset = ["tiger", "dragon", "snake", "horse", "sheep"]; var set = d3.set(dataset); console.log(set.has("tiger")); set.add("monkey"); set.remove("snake"); console.log(set.values()); set.forEach(function(value){ console.log(value); }); console.log(set.empty()); console.log(set.size()); </script>
