How to add html special character in d3.js?

@dana 

In D3.js, you can add HTML special characters using the text() method to display text elements in SVG or other HTML elements.

Here's an example of how you can add an HTML special character in D3.js:

1
2
3
4
5
6
7
8

// Select the SVG element
var svg = d3.select("svg");

// Append a text element with the special character
svg.append("text")
    .attr("x", 50)
    .attr("y", 50)
    .text("©"); // This will display the copyright symbol

In this example, we are appending a text element to an SVG element and setting the text content to the copyright symbol using its Unicode character code ©. You can replace this character code with any other HTML special character codes as needed.