In the last step, we will be appending a path inside our main group element. If we save and refresh the page, we can see our axes being rendered inside the DOM: Left and bottom axes Append a Path Then, we also style our axis by assigning it different attributes and a label. Similar to the bottom axis, we append another group element and then call on it the d3.axisLeft method which takes the parameter of y. Then, we pass d3.axisBottom method in the call function where d3.axisBottom takes the parameter of x which is defined in the Add Scales section. In the above code, we are appending a group element inside our main group and translating it at the very bottom our container. The left axis will represent the value of bitcoin while the bottom axis displays the corresponding date. We are now going to append our left and bottom axes inside our group element for the line chart. Fetch Data var api = '' document.addEventListener("DOMContentLoaded", function(event) )) Append Axises First of all, we want to load our data of the Bitcoin Price Index from an external API once the DOM has been loaded. Let’s now move towards writing our JavaScript code. We have also added an tag inside our HTML to create the line chart inside it using D3.js Getting startedįirst of all, we will import the D3.js library directly from the CDN inside our HTML. We’ve also created a free D3.js course on Scrimba. We will be pulling in data from an external API and rendering a line chart with labels and an axis inside the DOM. In this tutorial, we are going to create a line chart displaying the Bitcoin Price Index from the past six months. Using D3.js, we can create various kinds of charts and graphs from our data.
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Learn D3.js for free on Scrimbaĭ3.js is an open source JavaScript library used to create beautiful data representations which we can view in any modern browser. By Sohaib Nehal Learn to create a line chart using D3.js Use the power of D3.js to draw beautiful representations of your data.