npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details


  • User packages



Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2022 – Pkg Stats / Ryan Hefner




A simple and elegant checkbox tree for React.





npm Build Status GitHub license

A simple and elegant checkbox tree for React.




Install the library using your favorite dependency manager:

yarn add react-checkbox-tree

Using npm:

npm install react-checkbox-tree --save

Note – This library makes use of Font Awesome styles and expects them to be loaded in the browser.

Include CSS

For your convenience, the library's styles can be consumed utilizing one of the following files:

  • node_modules/react-checkbox-tree/lib/react-checkbox-tree.css
  • node_modules/react-checkbox-tree/src/less/react-checkbox-tree.less
  • node_modules/react-checkbox-tree/src/scss/react-checkbox-tree.scss

Either include one of these files in your stylesheets or utilize a CSS loader:

import 'react-checkbox-tree/lib/react-checkbox-tree.css';

Render Component

A quick usage example is included below. Note that the react-checkbox-tree component is controlled. In other words, you must update its checked and expanded properties whenever a change occurs.

import React from 'react';
import CheckboxTree from 'react-checkbox-tree';

const nodes = [{
    value: 'mars',
    label: 'Mars',
    children: [
        { value: 'phobos', label: 'Phobos' },
        { value: 'deimos', label: 'Deimos' },

class Widget extends React.Component {
    state = {
        checked: [],
        expanded: [],

    render() {
        return (
                onCheck={checked => this.setState({ checked })}
                onExpand={expanded => this.setState({ expanded })}

All node objects must have a unique value. This value is serialized into the checked and expanded arrays and is also used for performance optimizations.

Changing the Default Icons

By default, react-checkbox-tree uses Font Awesome 4 for the various icons that appear in the tree. To utilize Font Awesome 5 icons, simply pass in iconsClass="fa5":


To change the rendered icons entirely, simply pass in the icons property and override the defaults. Note that you can override as many or as little icons as you like:

        check: <span className="rct-icon rct-icon-check" />,
        uncheck: <span className="rct-icon rct-icon-uncheck" />,
        halfCheck: <span className="rct-icon rct-icon-half-check" />,
        expandClose: <span className="rct-icon rct-icon-expand-close" />,
        expandOpen: <span className="rct-icon rct-icon-expand-open" />,
        expandAll: <span className="rct-icon rct-icon-expand-all" />,
        collapseAll: <span className="rct-icon rct-icon-collapse-all" />,
        parentClose: <span className="rct-icon rct-icon-parent-close" />,
        parentOpen: <span className="rct-icon rct-icon-parent-open" />,
        leaf: <span className="rct-icon rct-icon-leaf" />,

If you are using the react-fontawesome library, you can also directly substitute those icons:

import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'


        check: <FontAwesomeIcon className="rct-icon rct-icon-check" icon="check-square" />,
        uncheck: <FontAwesomeIcon className="rct-icon rct-icon-uncheck" icon={['fas', 'square']} />,
        halfCheck: <FontAwesomeIcon className="rct-icon rct-icon-half-check" icon="check-square" />,
        expandClose: <FontAwesomeIcon className="rct-icon rct-icon-expand-close" icon="chevron-right" />,
        expandOpen: <FontAwesomeIcon className="rct-icon rct-icon-expand-open" icon="chevron-down" />,
        expandAll: <FontAwesomeIcon className="rct-icon rct-icon-expand-all" icon="plus-square" />,
        collapseAll: <FontAwesomeIcon className="rct-icon rct-icon-collapse-all" icon="minus-square" />,
        parentClose: <FontAwesomeIcon className="rct-icon rct-icon-parent-close" icon="folder" />,
        parentOpen: <FontAwesomeIcon className="rct-icon rct-icon-parent-open" icon="folder-open" />,
        leaf: <FontAwesomeIcon className="rct-icon rct-icon-leaf-close" icon="file" />

Utility Functions

In addition to the CheckboxTree component, additional utility functions are available to set the initial state of the tree.

expandNodesToLevel(nodes, targetLevel)

Creates a list of all parent node keys until targetLevel.


  • nodes (Array): The same array of nodes passed into the main CheckboxTree component
  • targetLevel (number): The maximum expansion depth. Use Infinity for maximum depth.


  • Array: A list of node keys.


| Property | Type | Description | Default | | -------------------- | -------- | ---------------------------------------------------------------------------------------------------------------------- | ----------- | | nodes | array | Required. Specifies the tree nodes and their children. | | | checkModel | string | Specifies which checked nodes should be stored in the checked array. Accepts 'leaf' or 'all'. | 'leaf' | | checked | array | An array of checked node values. | [] | | direction | string | A string that specify whether the direction of the component is left-to-right ('ltr') or right-to-left ('rtl'). | 'ltr' | | disabled | bool | If true, the component will be disabled and nodes cannot be checked. | false | | expandDisabled | bool | If true, the ability to expand nodes will be disabled. | false | | expandOnClick | bool | If true, nodes will be expanded by clicking on labels. Requires a non-empty onClick function. | false | | expanded | array | An array of expanded node values. | [] | | icons | object | An object containing the mappings for the various icons and their components. See Changing the Default Icons. | { ... } | | iconsClass | string | A string that specifies which icons class to utilize. Currently, 'fa4' and 'fa5' are supported. | 'fa4' | | id | string | A string to be used for the HTML ID of the rendered tree and its nodes. | null | | lang | object | An object containing the language mappings for the various text elements. | { ... } | | name | string | Optional name for the hidden <input> element. | undefined | | nameAsArray | bool | If true, the hidden <input> will encode its values as an array rather than a joined string. | false | | nativeCheckboxes | bool | If true, native browser checkboxes will be used instead of pseudo-checkbox icons. | false | | noCascade | bool | If true, toggling a parent node will not cascade its check state to its children. | false | | onlyLeafCheckboxes | bool | If true, checkboxes will only be shown for leaf nodes. | false | | optimisticToggle | bool | If true, toggling a partially-checked node will select all children. If false, it will deselect. | true | | showExpandAll | bool | If true, buttons for expanding and collapsing all parent nodes will appear in the tree. | false | | showNodeIcon | bool | If true, each node will show a parent or leaf icon. | true | | showNodeTitle | bool | If true, the label of each node will become the title of the resulting DOM node. Overridden by node.title. | false | | onCheck | function | onCheck handler: function(checked, targetNode) {} | () => {} | | onClick | function | onClick handler: function(targetNode) {}. If set, onClick will be called when a node's label has been clicked. | () => {} | | onExpand | function | onExpand handler: function(expanded, targetNode) {} | () => {} |

onCheck and onExpand

Node Properties

Individual nodes within the nodes property can have the following structure:

| Property | Type | Description | Default | | -------------- | ------ | ---------------------------------------- | ------- | | label | mixed | Required. The node's label. | | | value | mixed | Required. The node's value. | | | children | array | An array of child nodes. | null | | className | string | A className to add to the node. | null | | disabled | bool | Whether the node should be disabled. | false | | icon | mixed | A custom icon for the node. | null | | showCheckbox | bool | Whether the node should show a checkbox. | true | | title | string | A custom title attribute for the node. | null |