Determine if something is a React class component

Usage

import React from 'react';
import isClassComponent from 'is-class-component';

class Hello extends React.Component {
  render() {
    return <div>Hello!</div>;
  }
}

class PureHello extends React.PureComponent {
  render() {
    return <div>Hello!</div>;
  }
}

function FunctionalHello() {
  return <div>Hello!</div>;
}

isClassComponent( Hello ) // -> true
isClassComponent( PureHello ) // -> true
isClassComponent( FunctionalHello ) // -> false

Versioning

This module follows semver. Breaking changes will only be made in major version updates.

All active NodeJS release lines are supported (v10+ at time of writing). After a release line of NodeJS reaches end of life according to Node's LTS schedule, support for that version of Node may be dropped at any time, and this will not be considered a breaking change. Dropping support for a Node version will be made in a minor version update (e.g. 1.2.0 to 1.3.0). If you are using a Node version which is approaching end of life, pin your dependency of this module to patch updates only using tilde (~) e.g. ~1.2.3 to avoid breakages.

Tests

Use npm test to run the tests. Use npm run cover to check coverage.

Changelog

See changelog.md

Issues

If you discover a bug, please raise an issue on Github. https://github.com/overlookmotel/is-class-component/issues

Contribution

Pull requests are very welcome. Please:

ensure all tests pass before submitting PR
add tests for new features
document new functionality/API additions in README
do not add an entry to Changelog (Changelog is created when cutting releases)