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# D3: Data-Driven Documents

**D3** (or **D3.js**) is a JavaScript library for visualizing data using web standards. D3 helps you bring data to life using SVG, Canvas and HTML. D3 combines powerful visualization and interaction techniques with a data-driven approach to DOM manipulation, giving you the full capabilities of modern browsers and the freedom to design the right visual interface for your data.

## Resources

* [API Reference](https://github.com/d3/d3/blob/master/API.md)
* [Release Notes](https://github.com/d3/d3/releases)
* [Gallery](https://github.com/d3/d3/wiki/Gallery)
* [Examples](https://bl.ocks.org/mbostock)
* [Wiki](https://github.com/d3/d3/wiki)

## Installing

If you use npm, `npm install d3`. Otherwise, download the [latest release](https://github.com/d3/d3/releases/latest). The released bundle supports anonymous AMD, CommonJS, and vanilla environments. You can load directly from [d3js.org](https://d3js.org), [CDNJS](https://cdnjs.com/libraries/d3), or [unpkg](https://unpkg.com/d3/). For example:

```html
<script src="https://d3js.org/d3.v5.js"></script>
```

For the minified version:

```html
<script src="https://d3js.org/d3.v5.min.js"></script>
```

You can also use the standalone D3 microlibraries. For example, [d3-selection](https://github.com/d3/d3-selection):

```html
<script src="https://d3js.org/d3-selection.v1.js"></script>
```

D3 is written using [ES2015 modules](http://www.2ality.com/2014/09/es6-modules-final.html). Create a [custom bundle using Rollup](https://bl.ocks.org/mbostock/bb09af4c39c79cffcde4), Webpack, or your preferred bundler. To import D3 into an ES2015 application, either import specific symbols from specific D3 modules:

```js
import {scaleLinear} from "d3-scale";
```

Or import everything into a namespace (here, `d3`):

```js
import * as d3 from "d3";
```

In Node:

```js
var d3 = require("d3");
```

You can also require individual modules and combine them into a `d3` object using [Object.assign](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign):

```js
var d3 = Object.assign({}, require("d3-format"), require("d3-geo"), require("d3-geo-projection"));
```

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