d3.js

The key is to handle all the selections, not just the enter selection: var myGroups = svg.selectAll(‘g’).data(myData); // enter selection var myGroupsEnter = myGroups.enter().append(“g”); myGroupsEnter.append(“line”); myGroupsEnter.append(“polygon”); // … // update selection — this will also contain the newly appended elements myGroups.select(“line”).attr(…); // … // exit selection myGroups.exit().remove(); There are two things here that warrant further … Read more

for remote data.json replace : d3.tsv(“data.tsv”, function(error, data) {…} with : d3.json(“data.json”, function(error, data) { console.log(data); // this is your data }); for local data: var myData = { {date:’2013-05-01′, frequency:99}, {date:’2013-05-02′, frequency:24} }; function draw(data) { console.log(data); // this is your data } draw(myData);

In d3 v5 the API for fetching data has changed quite a bit, which became necessary as the underlying workings have switched from using XMLHttpRequest to the Fetch API. In prior versions of D3 up to v4 your code would have behaved as you expected printing the single resulting array. The new API for d3.csv(), … Read more

It is quite easy, just add some more “key” : “value” pairs. Example: “children”: [ { “name”: “Google”, “size”: 3938, “url”: “https://www.google.com” }, { “name”: “Bing”, “size”: 3938, “url”: “http://www.bing.com” } ] Of course, in your d3 code you then need to append <svg:a> tags and set their xlink:href attribute. Here is some html and … Read more