Prefer react namespace over default export

src/Caption.js

@@ -1,11 +1,11 @@
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
 import LocaleUtils from './LocaleUtils';
 
 import { ENTER } from './keys';
 
-export default class Caption extends Component {
+export default class Caption extends React.Component {
   static propTypes = {
     date: PropTypes.instanceOf(Date),
     months: PropTypes.arrayOf(PropTypes.string),

src/Day.js

@@ -1,6 +1,6 @@
 /* eslint-disable jsx-a11y/no-static-element-interactions, react/forbid-prop-types */
 
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 import { isSameDay } from './DateUtils';
 import { hasOwnProp } from './Helpers';
@@ -17,7 +17,7 @@ function handleEvent(handler, day, modifiers) {
   };
 }
 
-export default class Day extends Component {
+export default class Day extends React.Component {
   static propTypes = {
     classNames: PropTypes.shape({
       day: PropTypes.string.isRequired,

src/DayPicker.js

@@ -1,4 +1,4 @@
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
 import Caption from './Caption';
@@ -14,7 +14,7 @@ import classNames from './classNames';
 
 import { ENTER, SPACE, LEFT, UP, DOWN, RIGHT } from './keys';
 
-export default class DayPicker extends Component {
+export default class DayPicker extends React.Component {
   static VERSION = '7.1.2';
 
   static propTypes = {
@@ -97,17 +97,17 @@ export default class DayPicker extends Component {
     weekdayElement: PropTypes.oneOfType([
       PropTypes.element,
       PropTypes.func,
-      PropTypes.instanceOf(Component),
+      PropTypes.instanceOf(React.Component),
     ]),
     navbarElement: PropTypes.oneOfType([
       PropTypes.element,
       PropTypes.func,
-      PropTypes.instanceOf(Component),
+      PropTypes.instanceOf(React.Component),
     ]),
     captionElement: PropTypes.oneOfType([
       PropTypes.element,
       PropTypes.func,
-      PropTypes.instanceOf(Component),
+      PropTypes.instanceOf(React.Component),
     ]),
 
     // Events

src/DayPickerInput.js

@@ -1,4 +1,4 @@
-import React from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
 import DayPicker from './DayPicker';

src/Month.js

@@ -1,4 +1,4 @@
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
 import Weekdays from './Weekdays';
@@ -9,7 +9,7 @@ import * as ModifiersUtils from './ModifiersUtils';
 import * as Helpers from './Helpers';
 import * as DateUtils from './DateUtils';
 
-export default class Month extends Component {
+export default class Month extends React.Component {
   static propTypes = {
     classNames: PropTypes.shape({
       body: PropTypes.string.isRequired,

src/Navbar.js

@@ -1,10 +1,10 @@
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
 import defaultClassNames from './classNames';
 import { SPACE, ENTER } from './keys';
 
-export default class Navbar extends Component {
+export default class Navbar extends React.Component {
   static defaultProps = {
     classNames: defaultClassNames,
     dir: 'ltr',

src/Weekday.js

@@ -1,7 +1,7 @@
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
-export default class Weekday extends Component {
+export default class Weekday extends React.Component {
   static propTypes = {
     weekday: PropTypes.number,
     className: PropTypes.string,

src/Weekdays.js

@@ -1,7 +1,7 @@
-import React, { Component } from 'react';
+import * as React from 'react';
 import PropTypes from 'prop-types';
 
-export default class Weekdays extends Component {
+export default class Weekdays extends React.Component {
   static propTypes = {
     classNames: PropTypes.shape({
       weekday: PropTypes.string.isRequired,