Simple and extensible tag/word cloud React component

react-tagcloud

Simple and extensible tag/word cloud React component.

Installation

npm install react-tagcloud

# or with yarn
yarn install react-tagcloud

# react < 16.8.0
npm install react-tagcloud@1.4

Basic usage

import { TagCloud } from 'react-tagcloud'

const data = [
  { value: 'JavaScript', count: 38 },
  { value: 'React', count: 30 },
  { value: 'Nodejs', count: 28 },
  { value: 'Express.js', count: 25 },
  { value: 'HTML5', count: 33 },
  { value: 'MongoDB', count: 18 },
  { value: 'CSS3', count: 20 },
]

const SimpleCloud () => (
  <TagCloud
    minSize={12}
    maxSize={35}
    tags={data}
    onClick={tag => alert(`'${tag.value}' was selected!`)}
  />
)

API

Options

<TagCloud /> component has props listed below:

Option	Type	Required	Note
`tags`	`Array`	`true`	Array of objects that represent tags (see Tag object)
`maxSize`	`Number`	`true`	Maximal font size (in px) used in cloud
`minSize`	`Number`	`true`	Minimal font size (in px) used in cloud
`shuffle`	`Boolean`	`false`	If true, tags are shuffled. When `tags` are modified, cloud is re-shuffled. Default: `true`
`randomNumberGenerator`	`Function`	`false`	Specifies a custom random number generator that is being used by shuffle algorithm. Default: `Math.random`
`colorOptions`	`Object`	`false`	Random color options (see randomColor#options)
`disableRandomColor`	`Boolean`	`false`	If `true`, random color is not used
`renderer`	`Function`	`false`	Function used to render tag

Note: Furthermore you can pass any other prop and it will be forwarded to the wrapping <div /> component (e.g. style, className).

Tag object

Each tag is represented by object literal having following properties:

Property	Type	Required	Note
`value`	`String`	`true`	String value to be displayed
`count`	`Number`	`true`	Represents frequency of the tag that is used to calculate tag size
`key`	`String`	`false`	Tag element key. If it is not provided, `value` property will be used instead (however it can fail if you don't have unique tag values. It is highly recommeded to use `key` property)
`color`	`String`	`false`	Represents color of the tag. If it is not provided, random color will be used instead
`props`	`Object`	`false`	Props to be passed to a particular tag component

Events

Event handlers can be passed to the <TagCloud /> props.
Each handler has two arguments: the first is related tag object and the second is DOM event object.

Currently supported events: onClick, onDoubleClick, onMouseMove

Note: Feel free to open issue if any other event is needed.

Styles

Default class names are tag-cloud for the wrapping container, and tag-cloud-tag for a particular tag.
Styles passed to <TagCloud /> props will be applied to the wrapping container.

Renderer

Rendering of tags can be fully customized by providing custom render function and passing it to the renderer prop.
By default is used defaultRenderer.
Render function has three arguments - tag, size and color.
For example:

import { TagCloud } from 'react-tagcloud'

const customRenderer = (tag, size, color) => {
  return (
    <span key={tag.value} style={{ color }} className={`tag-${size}`}>
      {tag.value}
    </span>
  )
}

const CustomizedCloud () => (
  <TagCloud tags={data} minSize={1} maxSize={5} renderer={customRenderer} />
)

More examples

Testing

Install dev modules:

yarn install

Run unit tests

yarn test

Run examples

cd examples
yarn install
yarn start

and open browser at http://localhost:3000