javascript-d3How can I use d3.js to create visualizations on Reddit?

You can use d3.js to create visualizations on Reddit by using the Reddit API to get data from Reddit and then using d3.js to create visuals from the data.

Example code

var data = await fetch("https://www.reddit.com/r/javascript/top/.json?limit=10")
  .then(response => response.json())
  .then(data => data.data.children);

// Create a D3 scale object
var x = d3.scaleLinear()
    .domain([0, d3.max(data, d => d.data.ups)])
    .range([0, width]);

// Create a D3 axis object
var xAxis = d3.axisBottom(x);

// Append the axis to the chart
chart.append("g")
  .attr("transform", "translate(0," + height + ")")
  .call(xAxis);

// Create a D3 line object
var line = d3.line()
    .x(d => x(d.data.ups))
    .y(d => y(d.data.title));

// Append the line to the chart
chart.append("path")
    .datum(data)
    .attr("fill", "none")
    .attr("stroke", "steelblue")
    .attr("stroke-width", 1.5)
    .attr("d", line);

The code above will fetch the top 10 posts from the subreddit javascript and create a chart with the x-axis representing the number of upvotes and the y-axis representing the title of the post. The code will also create a line chart to plot the data.

Code explanation

1. fetch: To fetch the data from Reddit using the Reddit API
2. d3.scaleLinear: To create a D3 scale object
3. d3.axisBottom: To create a D3 axis object
4. chart.append: To append the axis to the chart
5. d3.line: To create a D3 line object
6. chart.append: To append the line to the chart

Helpful links

• d3.js
• Reddit API

Edit this code on GitHub