import React, { PureComponent } from 'react'; interface ToggleButtonProps { onChange?: (value) => void; selected?: boolean; value: any; classNames?: string; } interface ToggleButtonState {} export default class ToggleButton extends PureComponent { static defaultProps = { classNames: '', }; handleChange = () => { const { onChange, value } = this.props; if (onChange) { onChange(value); } }; render() { const { children, selected, classNames } = this.props; const btnClassName = `btn ${classNames} ${selected ? 'active' : ''}`; return ( ); } }