Just a simple wrapper React component for Chart.js 3.

Installation

npm i react-chartjs3-wrapper

TODO: add documentation over underline plugin

Usage

The following shows how to create a React Chart.js 3 component.

import React from 'react';
import { ChartJsComponent, conditionalRegistration } from 'react-chartjs3-wrapper';

const MyComponent = () => {
  useEffect(() => {
    conditionalRegistration({
      line: true,
      title: true,
      legend: true
    })
  }, [])
  return (
    <div>
      <ChartJsComponent
        type="line"
        data={data}
        options={options}
      />
    </div>
  );
};

Documentation

Component

The ChartJsComponent is a simple component which wraps a Chart.js chart. The available props are:

• type: the type of the chart (line, bar, pie, ...)
  • ✨NEW✨: choropleth and bubbleMap from chartjs-chart-geo plugin are now available!
• data: the data to be displayed in the chart (it must be a Chart.js ChartData object)
• options: the chart options: (it must be a Chart.js ChartOptions object)
• plugins: the plugins used by the chart (it must be a Chart.js Plugin object array)

Crosshairs

Moreover, there are 2 plugins which can be enabled through 2 props: the Vertical Crosshair and the Horizontal Crosshair plugins. The 2 props are enableVerticalCrosshair and enableHorizonalCrosshair. In order to customize these 2 plugins, the corresponding option props can be used (crosshairVerticalOptions and crosshairHorizontalOptions respectively). These objects mostly contains HTML canvas element options. The following are the properties present in the option objects:

dashed?: boolean;
dashedSegments?: number[]; // default: [10]
fillStyle?: string | CanvasGradient | CanvasPattern;
filter?: string;
font?: string;
globalAlpha?: number;
globalCompositeOperation?: string;
lineCap?: CanvasLineCap;
lineDashOffset?: number;
lineJoin?: CanvasLineJoin;
lineWidth?: number; // default: 2
miterLimit?: number;
shadowBlur?: number;
shadowColor?: string;
shadowOffsetX?: number;
shadowOffsetY?: number;
strokeStyle?: string | CanvasGradient | CanvasPattern; // default: #000000

Registration

Being Chart.js 3 tree-shakeable, controllers, elements, scales and plugins to use are needed to be imported and registered. There are some functions to simplify these procedures:

• registerAll: to quickly register all the available items, however not making use of the tree-shakeable feature
• conditionalRegistration: a function which takes an object as argument, specifying which kind of chart and utilities are needed; the options are the following:
  • bar: enable bar charts
  • bubble: enable bubble charts
  • doughnut: enable doughnut charts
  • line: enable line charts
  • polar: enable polar charts
  • pie: enable pie charts
  • radar: enable radar charts
  • scatter: enable scatter charts
  • filler: enable area between two datasets or a dataset and a boundary
  • legend: enable chart legend
  • title: enable chart title
  • tooltip: enable chart tooltip
  • ✨NEW✨ choropleth: enable choropleth charts from chartjs-chart-geo
  • ✨NEW✨ bubbleMap: enable bubbleMap charts from chartjs-chart-geo
  • others: used to specify a list of available items to be specified not included in the previous options but needed (e.g., TimeSeriesScale)

The registration functions should be called at the beginning of the component (e.g., inside the useEffect hook).

Example

The following displays the result of the provided example: a line chart with the vertical crosshair plugin.

License

MIT