ant-design/components/checkbox/index.tsx

import RcCheckbox from 'rc-checkbox';
import * as React from 'react';
import CheckboxGroup from './Group';
import classNames from 'classnames';
import PureRenderMixin from 'react-addons-pure-render-mixin';
import splitObject from '../_util/splitObject';

interface CheckboxProps {
  /** 指定当前是否选中*/
  checked?:boolean,
  /** 初始是否选中*/
  defaultChecked?:boolean,
  /** 变化时回调函数*/
  onChange?:React.FormEventHandler,

  style?:React.CSSProperties,

  disabled?: boolean,

  className?: string,
}

export default class Checkbox extends React.Component<CheckboxProps, any> {
  static Group = CheckboxGroup;
  static defaultProps = {
    prefixCls: 'ant-checkbox',
  }
  shouldComponentUpdate(...args) {
    return PureRenderMixin.shouldComponentUpdate.apply(this, args);
  }
  render() {
    const [{ prefixCls, style, children, className },restProps] = splitObject(this.props, ['prefixCls', 'style', 'children', 'className']);
    const classString = classNames({
      [className]: !!className,
      [`${prefixCls}-wrapper`]: true,
    });
    return (
      <label className={classString} style={style}>
        <RcCheckbox {...restProps} prefixCls={prefixCls} children={null} />
        {children !== undefined ? <span>{children}</span> : null}
      </label>
    );
  }
}