react-data-table-component-tmp v3.0.4

React Data Table Component

Creating yet another React table library came out of necessity while developing a web application for a growing startup. I discovered that while there are some great table libraries already available, most required heavy customization or lacked basic features such as built in sorting and pagination, and in some cases required a restrictive license.

If you want to achieve balance with the force and want a simple but flexible table library give React Data Table Component a chance. If you require an Excel clone and need to pivot large data sets then this is not the React table library you are looking for 👋

Table of Contents

• Features
• Demo & Examples
• Requirements
• Installation
• Issues/Contributing
• API
  • Defining Columns
  • DataTable Properties
• Basic Table
• Selectable Rows
• Custom Cells
• Expandable Rows
• Optimizing for Performance and Caveats
• Theming
• CSS Overrides

Demo and Examples

React Data Table Component Demo

Key Features

• Declarative Configuration
• Sortable (client)
• Selectable Rows
• Expandable Rows
• Themeable via js config
• Data Aware (i.e. easily callback to a parent component get the DataTable state, e.g. selectedRows
• Responsive (via x-scroll/flex)
• Pagination

Requirements

React Data Table Component requires the following be installed in your project:

• React 16.8.0+
• styled-components 3.2.3+ || 4.0.0+ || 5.0.0+

Installation

React Data Table requires the wonderful styled-components library. If you've already installed styled-components there is no need to install it again.

npm install react-data-table-component styled-components

or

yarn add react-data-table-component styled-components

Logging Issues and Contributions

Please use the github issue templates feature for logging issues or feature proposals. Including a codesanbox and providing clear details on the feature/issue will elicit a much quicker response 😉

API and Usage

Columns

Nothing new here - we are using an array of object literals and properties to describle the columns:

column.hide media presets

When the breakpoint is reached the column will be hidden. These are the built-in media breakpoint presets when hiding columns

DataTable Properties

Basic

Progress Indicator

Row Selection

Row Expander

Sorting

Pagination

Header

Advanced Selectable Component Options

Sometimes 3rd party checkbox components have their own way of handling indeterminate state. We don't want React Data Table hardcoded to a specific ui lib or custom component, so instead a "hook" is provided to allow you to pass a function that will be resolved by React Data Table's internal Checkbox for use with indeterminate functionality.

Example Usage:

const { Checkbox } from 'react-md';

...

/*
  In this example, the react-md ui lib determines its own indeterminate state via the `uncheckedIcon` property.
  Let's override it. React Data Table is made aware if a checkbox is indetermite or not becuase internally we can resolve this   as `yourfunction(checkboxawareindeterminatestate)`
*/

const handleIndeterminate = isIndeterminate => (isIndeterminate ? <FontIcon>indeterminate_check_box</FontIcon> : <FontIcon>check_box_outline_blank</FontIcon>);

const MyComponent = () => (
  <DataTable
    title="Arnold Movies"
    columns={columns}
    data={data}
    selectableRows
    selectableRowsComponent={Checkbox} // Pass the function only
    selectableRowsComponentProps={{ uncheckedIcon: handleIndeterminate  }}
  />
);

Note This is currently only supported for indeterminate state, but may be expanded in the future if there is a demand

Basic Table

The following declarative structure creates a sortable table of Arnold movie titles:

import DataTable from 'react-data-table-component';

const data = [{ id: 1, title: 'Conan the Barbarian', year: '1982' } ...];
const columns = [
  {
    name: 'Title',
    selector: 'title',
    sortable: true,
  },
  {
    name: 'Year',
    selector: 'year',
    sortable: true,
    right: true,
  },
];

class MyComponent extends Component {
  render() {
    return (
      <DataTable
        title="Arnold Movies"
        columns={columns}
        data={data}
      />
    )
  }
);

Selectable Rows

Let's make our rows selectable so we can access the selected results

...

const handleChange = (state) => {
  // You can use setState or dispatch with something like Redux so we can use the retrieved data
  console.log('Selected Rows: ', state.selectedRows);
};

class MyComponent extends Component {
  render() {
      return (
        <DataTable
          title="Arnold Movies"
          columns={columns}
          data={data}
          selectableRows // add for checkbox selection
          onRowSelected={handleChange}
        />
    )
  }
);

Clearing Selected Rows

We need some hook to trigger all the selectedRows to clear. If you were building your own table component, you would manage the selected rows state in some parent component, however, in our case, since we to keep row management within React Data Table, a clearSelectedRows prop is provided so you can pass a toggled state.

It will be up to you to make sure you do not pass the same state twice. For example, if you set clearSelectedRows={true} twice, on the second update/trigger, none the rows will not be cleared.

...
// set the initial state
state = { toggledClearRows: false }
...

const handleChange = (state) => {
  // You can use setState or dispatch with something like Redux so we can use the retrieved data
  console.log('Selected Rows: ', state.selectedRows);
};

// Toggle the state so React Table Table changes to `clearSelectedRows` are triggered
const handleClearRows = () => {
  this.setState({ toggledClearRows: !this.state.toggledClearRows})
}

class MyComponent extends Component {
  render() {
    return (
      <DataTable
        title="Arnold Movies"
        columns={columns}
        data={data}
        selectableRows // add for checkbox selection
        onRowSelected={handleChange}
        clearSelectedRows={this.state.toggledClearRows}
      />
    )
  }
);

Overriding with a 3rd Party Ui Component Library

Don't like those ugly html checkboxes? Let's override them with some react-md sexyiness. While we are at it we will also override the sortIcon:

...
import { Checkbox, FontIcon } from 'react-md';
...

class MyComponent extends Component {
  render() {
    return (
      title="Arnold Movies"
      columns={columns}
      data={data}
      selectableRows
      selectableRowsComponent={Checkbox} // Pass the function only
      selectableRowsComponentProps={{ inkDisabled: true }} // optionally, pass react-md supported props down to our custom checkbox
      sortIcon={<FontIcon>arrow_downward</FontIcon>} // use a material icon for our sort icon. rdt will rotate the icon 180 degrees
      onRowSelected={handleChange}
    />
    )
  }
);

Custom Cells

Let's give our Movie list a summary, but in the same cell as Name:

....

const data = [{ id: 1, title: 'Conan the Barbarian', summary: 'Orphaned boy Conan is enslaved after his village is destroyed...',  year: '1982' } ...];
const columns = [
  {
    name: 'Title',
    sortable: true,
    cell: row => <div><div style={{ fontWeight: bold }}>{row.title}</div>{row.summary}</div>,
  },
  {
    name: 'Year',
    selector: 'year',
    sortable: true,
    right: true,
  },
];

...

class MyComponent extends Component {
  render() {
    return (
      <DataTable
        title="Arnold Movies"
        columns={columns}
        data={data}
        selectableRows
        selectableRowsComponent={Checkbox}
        selectableRowsComponentProps={{ inkDisabled: true }}
        sortIcon={<FontIcon>arrow_downward</FontIcon>}
        onRowSelected={handleChange}
      />
    )
  }
);

Expandable Rows

Let's make our rows expandable so we can view more details:

...

const data = [{ id: 1, title: 'Conan the Barbarian', summary: 'Orphaned boy Conan is enslaved after his village is destroyed...',  year: '1982', image: 'http://conan.image.png' } ...];
const columns = [
  {
    name: 'Title',
    sortable: true,
    cell: row => <div><div style={{ fontWeight: 700 }}>{row.title}</div>{row.summary}</div>,
  },
  {
    name: 'Year',
    selector: 'year',
    sortable: true,
    right: true,
  },
];

...

// The row data is composed into your custom expandable component via the data prop
const ExpanableComponent = ({ data }) => <img src={data.image} />;

class MyComponent extends Component {
  render() {
    return (
      <DataTable
        title="Arnold Movies"
        columns={columns}
        data={data}
        selectableRows
        selectableRowsComponent={Checkbox}
        selectableRowsComponentProps={{ inkDisabled: true }}
        sortIcon={<FontIcon>arrow_downward</FontIcon>}
        onRowSelected={handleChange}
        expandableRows
        expandableRowsComponent={<ExpanableComponent />}
      />
    )
  }
);

But in some cases we don't have more details to show:

...

const data = [{ id: 1, title: 'Conan the Barbarian', summary: 'Orphaned boy Conan is enslaved after his village is destroyed...',  year: '1982', expanderDisabled: true, image: 'http://conan.image.png' } ...];
const columns = [
  {
    name: 'Title',
    sortable: true,
    cell: row => <div><div style={{ fontWeight: 700 }}>{row.title}</div>{row.summary}</div>,
  },
  {
    name: 'Year',
    selector: 'year',
    sortable: true,
    right: true,
  },
];

...

// The row data is composed into your custom expandable component via the data prop
const ExpanableComponent = ({ data }) => <img src={data.image} />;

class MyComponent extends Component {
  render() {
    return (
      <DataTable
        title="Arnold Movies"
        columns={columns}
        data={data}
        selectableRows
        selectableRowsComponent={Checkbox}
        selectableRowsComponentProps={{ inkDisabled: true }}
        sortIcon={<FontIcon>arrow_downward</FontIcon>}
        onRowSelected={handleChange}
        expandableRows
        expandableDisabledField="expanderDisabled"
        expandableRowsComponent={<ExpanableComponent />}
      />
    )
  }
);

Optimizing for Performance and Caveats

Pre-optimizaton can be the root of all evil, however, there are some best practices you can adhere to that will ensure React Data Table (RDT) is giving you the performance that you expect.

Passing non-primitive props (objects, arrays and functions)

While RDT has internal optimizations to try and prevent re-renders on deeper internal components, for peak performance it's up to you to make sure that you understand how React manages rendering when props/state change as well as how JavaScript determines equality for non-primitives. As a general rule, or if you are experiencing performance issues you should ensure that any non-primitive property that's passed into RDT is not re-created on every render cycyle. This is even more important when you have larger data sets or you are passing complex components and columns to DataTable.

Optimizing Class Components

You can typically achieve this by moving props such as objects, arrays, functions or other React compents that you pass to RDT outside of the render method. Additionally, RDT provides you with a memoize helper for cases where you are using a function to generate those values.

Examples of Optimizations

The following component will cause RDT to fully re-render everytime onRowSelected is triggered. Why? Becuase when setState is called it triggers myComponent to re-render which by design triggers a re-render on all child components i.e. DataTable. But luckily for you React optimally handles this descision on when and how to re-render DataTable and a full re-render should not occur as long as DataTable props are the same.

However, in the example below columns changes on every re-render becuase it's being re-created. This is due to referential equality checking, simply: columns[] !== columns[]. In other words, while both instances of columns contain the same elements, they are "different" arrays.

Bad

...
import React, { Component } from 'react';
import DataTable from 'react-data-table';

class MyComponent extends Component {
  updateState = state => {
    this.setState({ selectedRows: state.selectedRows }); // triggers MyComponet to re-render with new state
  }

  render () { // by design runs on every setState trigger
    // upon re-render columns array is recreated and thus causes DataTable to re-render
    const columns = [....];

    return (
      <DataTable
        data={data}
        columns={columns}
        onRowSelected={this.updateState}
        selectableRows
      />
    )
  }
}

A "solution" could be to declare any field that is a non primitive field outside of the render function so that it does not get recreated on every re-render cycle:

Good

...
import React, { Component } from 'react';
import DataTable from 'react-data-table';

const columns = [....]; // is only created once

class MyComponent extends Component {
  updateState = state => {
    this.setState({ selectedRows: state.selectedRows });
  }

  render () {

    return (
      <DataTable
        data={data}
        columns={columns}
        onRowSelected={this.updateState}
        selectableRows
      />
    )
  }
}

But that only works if you don't need to pass component props/methods to the column object. For example what if you want to attach an event handler to a button in the row using column.cell?

const columns = [;
  {
    cell: () => <Button raised primary onClick={this.handleAction}>Action</Button>,
    ignoreRowClick: true,
    allowOverflow: true,
    button: true,
  },
  ...
];

So how do we attach event handlers to our columns without having to place it in the render method and dealing with unnescessary re-renders?

1. Create a columns function and pass the arguments needed
2. Memoize the columns function

This way, when React checks if columns has changes columns will instead be cached result (remember referential equality), thus no unnessesary re-render.

Got it? Let's try this again with the optimal solution:

import React, { Component } from 'react';
import DataTable, { memoize } from 'react-data-table';

const onRowSelected = memoize(handleAction => [
  ...
  {
    cell: () => <Button raised primary onClick={handleAction}>Action</Button>,
    ignoreRowClick: true,
    allowOverflow: true,
    button: true,
  },
  ...
]);

class MyComponent extends Component {
  updateState = state => {
    this.setState({ selectedRows: state.selectedRows });
  }

  render () {
    return (
      <DataTable
        data={data}
        columns={columns(this.updateState)}
        onRowSelected={this.updateState}
        selectableRows
      />
    );
  }
}

Notice that this.updateState does not require memoization. That's because this.updateState is defined as a class method and therefore only created once. This however, is a different matter with function components.

Optimizing Functional Components

If you're building functional components you get access to React Hooks such as useMemo and useCallback. In this example, simply wrap columns in a useMemo callback and your updateState into useCallback:

import React, { useState, useMemo } from 'react';
import DataTable from 'react-data-table';

const MyComponentHook = () => {
  const [thing, setThing] = useState();
  const handleAction = value => setThing(value);
  // unklike class methods updateState will be re-created on each render pass, therefore, make sure that callbacks passed to onRowSelected are memoized using useCallback
  const updateState = useCallback(state => console.log(state));
  const columns = useMemo(() => [
    ...
    {
      cell: () => <Button raised primary onClick={handleAction}>Action</Button>,
      ignoreRowClick: true,
      allowOverflow: true,
      button: true,
    },
    ...
  ]);

  return (
    <DataTable
      data={data}
      columns={columns}
      onRowSelected={updateState}
      selectableRows
    />
  );
}

Theming

You can override or replace the default theme using the customTheme prop. Internally, this just deep merges your theme with the default theme.

For Example:

// Override the row default height
const mySweetTheme = {
  rows: {
    height: '64px'
  }
}

class MyComponent extends Component {
  render() {
    return (
      <DataTable
        title="Arnold Movies"
        columns={columns}
        customTheme={mySweetTheme}
      />
    )
  }
);

Refer to Default Theme for reference and avaiilable properties to override

CSS Overrides

If you would like to customize the layout components of React Data Table using styled-components (e.g. styled(DataTable)), or your favorite CSS, SCSS, LESS, etc.. preprocesor you may use the following classNames:

• rdt_Table
• rdt_TableRow
• rdt_TableCol
• rdt_TableCol_Sortable
• rdt_TableCell
• rdt_TableHeader
• rdt_TableFooter
• rdt_TableHead
• rdt_TableHeadRow
• rdt_TableBody
• rdt_ExpanderRow

Development

Setup

Install the latest Node JS LTS and Yarn and simply run yarn or yarn install command in the root and stories directory.

It is advised to run the script whenever NPM packages are installed.

Local development

During development,

# watch and build new source changes
yarn start
# or serve *.stories.js files and manually test on the Storybook app
yarn storybook

Including NPM packages

This project uses two package.json structure.

Library dependencies -- <root_dir>/package.json

yarn add [package-name] --dev # for dev tools
yarn add [package-name] # for app

Storybook dependencies -- <root_dir>/stories/package.json

cd stories/
yarn add [package-name]

Lint

yarn lint # runs linter to detect any style issues (css & js)
yarn lint:css # lint only css
yarn lint:js # lint only js
yarn lint:js --fix # tries to fix js lint issues

Test

yarn test # runs functional/unit tests using Jest
yarn test --coverage # with coverage

Build

yarn build # builds sources at src/