Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

d3.js tutorial

Open
#420 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Documentation
Clarity
Mostly clear
Activity status
Stale
Tech stack
javascript

Research direction

Use the suggested four-lesson plan as the scope, covering D3.js basics, SVG, visualisations, and dynamic graphs. First review the repository's existing tutorial structure and examples, then define the tutorial's completed lesson content and exercises around the topics listed in the issue.

Written by the indexing model from the issue text.

Description

I've been coaching d3.js with one of the West London students and I feel that it could be a good advanced tutorial to go beyond the JavaScript basics. Here's a suggested lesson plan:

Lesson 1 - D3.js basics

  • Basic HTML structure
  • Append element (add an h1 to the document)
  • Simple selection
    • Select (create ul + li, select the ul, set a property)
    • selectAll (set a property on all the li)
  • Bind data + enter
  • Simple div with text content
  • Simple bars
  • Coloured bars
  • Load external data
    • Local web server
    • Bar width: value
    • Text: title

Lesson 2 - Simple SVG

  • Basic SVG scatter plot
  • Scales
    • linear
    • time
    • ordinal
  • Axes
  • Line graphs
  • Area graphs
  • Box plots

Lesson 3 - Visualisations

  • Histogram
  • Pie
  • Pack
  • Dendro
  • Stream (area stack)
  • Bar Stack (introduce data on sub-fields)

Lesson 4 - Dynamic Graphs

  • On
    • Hover + highlight related sections to show how to use selections with “classed” applied and dynamic conditions that are true of false based on data fields
    • Action on click
  • Update / exit
Dominant language
JavaScript
Stars
268
Forks
240
PR merge metrics
No merged PRs in 30d

Contributor guide

No contributing guide indexed for this repository

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from codebar/tutorials

All issues in codebar/tutorials

Similar issues

More JavaScript issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.