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javascript-d3How do I import the D3 library in JavaScript?


The D3 library can be imported into a JavaScript project in a few different ways.

  1. Using a CDN

A Content Delivery Network (CDN) is a network of servers that can serve files to a user's browser. The D3 library can be imported using a CDN by adding the following code to the <head> of an HTML document:

<script src="https://d3js.org/d3.v5.min.js"></script>
  1. Using npm

If the project is using a package manager such as npm, the D3 library can be imported by running the following command in the terminal:

npm install d3

This will install the D3 library in the project's node_modules folder.

  1. Using a local file

If the project is not using a package manager, the D3 library can be imported by downloading the library from the D3 website and adding the following code to the <head> of an HTML document:

<script src="path/to/d3.min.js"></script>

Where path/to/d3.min.js is the path to the downloaded D3 library file.

Once the D3 library has been imported, it can be used in the project by referencing the d3 object. For example:

console.log(d3.version);

Output example

5.16.0

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