react-transition-group - npm Package Compare versions

Comparing version 2.4.0 to 2.5.0

CHANGELOG.md

@@ -0,1 +1,8 @@
+# [2.5.0](https://github.com/reactjs/react-transition-group/compare/v2.4.0...v2.5.0) (2018-09-26)
+
+
+### Features
+
+* update build and package dependencies ([#413](https://github.com/reactjs/react-transition-group/issues/413)) ([af3d45a](https://github.com/reactjs/react-transition-group/commit/af3d45a))
+
 # [2.4.0](https://github.com/reactjs/react-transition-group/compare/v2.3.1...v2.4.0) (2018-06-27)
@@ -2,0 +9,0 @@

CSSTransition.js

@@ -1,52 +0,39 @@
-'use strict';
+"use strict";
 
 exports.__esModule = true;
+exports.default = void 0;
 
-var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
+var PropTypes = _interopRequireWildcard(require("prop-types"));
 
-var _propTypes = require('prop-types');
+var _addClass = _interopRequireDefault(require("dom-helpers/class/addClass"));
 
-var PropTypes = _interopRequireWildcard(_propTypes);
+var _removeClass = _interopRequireDefault(require("dom-helpers/class/removeClass"));
 
-var _addClass = require('dom-helpers/class/addClass');
+var _react = _interopRequireDefault(require("react"));
 
-var _addClass2 = _interopRequireDefault(_addClass);
+var _Transition = _interopRequireDefault(require("./Transition"));
 
-var _removeClass = require('dom-helpers/class/removeClass');
+var _PropTypes = require("./utils/PropTypes");
 
-var _removeClass2 = _interopRequireDefault(_removeClass);
-
-var _react = require('react');
-
-var _react2 = _interopRequireDefault(_react);
-
-var _Transition = require('./Transition');
-
-var _Transition2 = _interopRequireDefault(_Transition);
-
-var _PropTypes = require('./utils/PropTypes');
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
 
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
 
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
-
 var addClass = function addClass(node, classes) {
   return node && classes && classes.split(' ').forEach(function (c) {
-    return (0, _addClass2.default)(node, c);
+    return (0, _addClass.default)(node, c);
   });
 };
+
 var removeClass = function removeClass(node, classes) {
   return node && classes && classes.split(' ').forEach(function (c) {
-    return (0, _removeClass2.default)(node, c);
+    return (0, _removeClass.default)(node, c);
   });
 };
 
-var propTypes = _extends({}, _Transition2.default.propTypes, {
-
+var propTypes = process.env.NODE_ENV !== "production" ? _extends({}, _Transition.default.propTypes, {
   /**
@@ -145,4 +132,3 @@ * The animation classNames applied to the component as it enters, exits or has finished the transition.
   onExited: PropTypes.func
-});
-
+}) : {};;
 /**
@@ -160,21 +146,19 @@ * A `Transition` component using CSS transitions and animations.
  * added in the next tick. This is a convention based on the `classNames` prop.
- *
- * ## Example
- *
- * <iframe src="https://codesandbox.io/embed/m77l2vp00x?fontsize=14" style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
  */
 
-var CSSTransition = function (_React$Component) {
-  _inherits(CSSTransition, _React$Component);
+var CSSTransition =
+/*#__PURE__*/
+function (_React$Component) {
+  _inheritsLoose(CSSTransition, _React$Component);
 
   function CSSTransition() {
-    var _temp, _this, _ret;
+    var _this;
 
-    _classCallCheck(this, CSSTransition);
-
-    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
+    for (var _len = arguments.length, args = new Array(_len), _key = 0; _key < _len; _key++) {
       args[_key] = arguments[_key];
     }
 
-    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _this.onEnter = function (node, appearing) {
+    _this = _React$Component.call.apply(_React$Component, [this].concat(args)) || this;
+
+    _this.onEnter = function (node, appearing) {
       var _this$getClassNames = _this.getClassNames(appearing ? 'appear' : 'enter'),
@@ -184,2 +168,3 @@ className = _this$getClassNames.className;
       _this.removeClasses(node, 'exit');
+
       addClass(node, className);
@@ -190,3 +175,5 @@
       }
-    }, _this.onEntering = function (node, appearing) {
+    };
+
+    _this.onEntering = function (node, appearing) {
       var _this$getClassNames2 = _this.getClassNames(appearing ? 'appear' : 'enter'),
@@ -200,3 +187,5 @@ activeClassName = _this$getClassNames2.activeClassName;
       }
-    }, _this.onEntered = function (node, appearing) {
+    };
+
+    _this.onEntered = function (node, appearing) {
       var _this$getClassNames3 = _this.getClassNames('enter'),
@@ -206,2 +195,3 @@ doneClassName = _this$getClassNames3.doneClassName;
       _this.removeClasses(node, appearing ? 'appear' : 'enter');
+
       addClass(node, doneClassName);
@@ -212,3 +202,5 @@
       }
-    }, _this.onExit = function (node) {
+    };
+
+    _this.onExit = function (node) {
       var _this$getClassNames4 = _this.getClassNames('exit'),
@@ -218,3 +210,5 @@ className = _this$getClassNames4.className;
       _this.removeClasses(node, 'appear');
+
       _this.removeClasses(node, 'enter');
+
       addClass(node, className);
@@ -225,3 +219,5 @@
       }
-    }, _this.onExiting = function (node) {
+    };
+
+    _this.onExiting = function (node) {
       var _this$getClassNames5 = _this.getClassNames('exit'),
@@ -235,3 +231,5 @@ activeClassName = _this$getClassNames5.activeClassName;
       }
-    }, _this.onExited = function (node) {
+    };
+
+    _this.onExited = function (node) {
       var _this$getClassNames6 = _this.getClassNames('exit'),
@@ -241,2 +239,3 @@ doneClassName = _this$getClassNames6.doneClassName;
       _this.removeClasses(node, 'exit');
+
       addClass(node, doneClassName);
@@ -247,12 +246,9 @@
       }
-    }, _this.getClassNames = function (type) {
+    };
+
+    _this.getClassNames = function (type) {
       var classNames = _this.props.classNames;
-
-
       var className = typeof classNames !== 'string' ? classNames[type] : classNames + '-' + type;
-
       var activeClassName = typeof classNames !== 'string' ? classNames[type + 'Active'] : className + '-active';
-
       var doneClassName = typeof classNames !== 'string' ? classNames[type + 'Done'] : className + '-done';
-
       return {
@@ -263,11 +259,15 @@ className: className,
       };
-    }, _temp), _possibleConstructorReturn(_this, _ret);
+    };
+
+    return _this;
   }
 
-  CSSTransition.prototype.removeClasses = function removeClasses(node, type) {
-    var _getClassNames = this.getClassNames(type),
-        className = _getClassNames.className,
-        activeClassName = _getClassNames.activeClassName,
-        doneClassName = _getClassNames.doneClassName;
+  var _proto = CSSTransition.prototype;
 
+  _proto.removeClasses = function removeClasses(node, type) {
+    var _this$getClassNames7 = this.getClassNames(type),
+        className = _this$getClassNames7.className,
+        activeClassName = _this$getClassNames7.activeClassName,
+        doneClassName = _this$getClassNames7.doneClassName;
+
     className && removeClass(node, className);
@@ -278,3 +278,3 @@ activeClassName && removeClass(node, activeClassName);
 
-  CSSTransition.prototype.reflowAndAddClass = function reflowAndAddClass(node, className) {
+  _proto.reflowAndAddClass = function reflowAndAddClass(node, className) {
     // This is for to force a repaint,
@@ -286,2 +286,3 @@ // which is necessary in order to transition styles when adding a class name.
       /* eslint-enable no-unused-expressions */
+
       addClass(node, className);
@@ -291,8 +292,7 @@ }
 
-  CSSTransition.prototype.render = function render() {
+  _proto.render = function render() {
     var props = _extends({}, this.props);
 
     delete props.classNames;
-
-    return _react2.default.createElement(_Transition2.default, _extends({}, props, {
+    return _react.default.createElement(_Transition.default, _extends({}, props, {
       onEnter: this.onEnter,
@@ -308,7 +308,7 @@ onEntered: this.onEntered,
   return CSSTransition;
-}(_react2.default.Component);
+}(_react.default.Component);
 
 CSSTransition.propTypes = process.env.NODE_ENV !== "production" ? propTypes : {};
-
-exports.default = CSSTransition;
-module.exports = exports['default'];
+var _default = CSSTransition;
+exports.default = _default;
+module.exports = exports["default"];

index.js

@@ -1,26 +0,18 @@
-'use strict';
+"use strict";
 
-var _CSSTransition = require('./CSSTransition');
+var _CSSTransition = _interopRequireDefault(require("./CSSTransition"));
 
-var _CSSTransition2 = _interopRequireDefault(_CSSTransition);
+var _ReplaceTransition = _interopRequireDefault(require("./ReplaceTransition"));
 
-var _ReplaceTransition = require('./ReplaceTransition');
+var _TransitionGroup = _interopRequireDefault(require("./TransitionGroup"));
 
-var _ReplaceTransition2 = _interopRequireDefault(_ReplaceTransition);
+var _Transition = _interopRequireDefault(require("./Transition"));
 
-var _TransitionGroup = require('./TransitionGroup');
-
-var _TransitionGroup2 = _interopRequireDefault(_TransitionGroup);
-
-var _Transition = require('./Transition');
-
-var _Transition2 = _interopRequireDefault(_Transition);
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
 module.exports = {
-  Transition: _Transition2.default,
-  TransitionGroup: _TransitionGroup2.default,
-  ReplaceTransition: _ReplaceTransition2.default,
-  CSSTransition: _CSSTransition2.default
+  Transition: _Transition.default,
+  TransitionGroup: _TransitionGroup.default,
+  ReplaceTransition: _ReplaceTransition.default,
+  CSSTransition: _CSSTransition.default
 };

package.json

 {
   "name": "react-transition-group",
-  "version": "2.4.0",
+  "version": "2.5.0",
   "description": "A react component toolset for managing animations",
@@ -40,3 +40,3 @@ "main": "index.js",
     "dom-helpers": "^3.3.1",
-    "loose-envify": "^1.3.1",
+    "loose-envify": "^1.4.0",
     "prop-types": "^15.6.2",
@@ -43,0 +43,0 @@ "react-lifecycles-compat": "^3.0.4"

README.md

@@ -5,5 +5,5 @@ # react-transition-group [![npm][npm-badge]][npm]
 >
-> **For a drop-in replacement for `react-addons-transition-group` and `react-addons-css-transition-group`, use the v1 release, which is still actively maintained. Documentation and code for that release are available on the [`v1-stable`](https://github.com/reactjs/react-transition-group/tree/v1-stable) branch.**
+> **For a drop-in replacement for `react-addons-transition-group` and `react-addons-css-transition-group`, use the v1 release. Documentation and code for that release are available on the [`v1-stable`](https://github.com/reactjs/react-transition-group/tree/v1-stable) branch.**
 >
-> You can send pull requests with v1 bugfixes against the `v1-stable` branch.
+> We are no longer updating the v1 codebase, please upgrade to v2 when possible
 
@@ -10,0 +10,0 @@ A set of components for managing component states (including mounting and unmounting) over time, specifically designed with animation in mind.

ReplaceTransition.js

@@ -1,38 +0,27 @@
-'use strict';
+"use strict";
 
 exports.__esModule = true;
+exports.default = void 0;
 
-var _propTypes = require('prop-types');
+var _propTypes = _interopRequireDefault(require("prop-types"));
 
-var _propTypes2 = _interopRequireDefault(_propTypes);
+var _react = _interopRequireDefault(require("react"));
 
-var _react = require('react');
+var _reactDom = require("react-dom");
 
-var _react2 = _interopRequireDefault(_react);
+var _TransitionGroup = _interopRequireDefault(require("./TransitionGroup"));
 
-var _reactDom = require('react-dom');
-
-var _TransitionGroup = require('./TransitionGroup');
-
-var _TransitionGroup2 = _interopRequireDefault(_TransitionGroup);
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
+function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
 
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
-
-var propTypes = {
-  in: _propTypes2.default.bool.isRequired,
+var propTypes = process.env.NODE_ENV !== "production" ? {
+  in: _propTypes.default.bool.isRequired,
   children: function children(props, propName) {
-    if (_react2.default.Children.count(props[propName]) !== 2) return new Error('"' + propName + '" must be exactly two transition components.');
-
+    if (_react.default.Children.count(props[propName]) !== 2) return new Error("\"" + propName + "\" must be exactly two transition components.");
     return null;
   }
-};
-
+} : {};;
 /**
@@ -50,18 +39,70 @@ * The `<ReplaceTransition>` component is a specialized `Transition` component
 
-var ReplaceTransition = function (_React$Component) {
-  _inherits(ReplaceTransition, _React$Component);
+var ReplaceTransition =
+/*#__PURE__*/
+function (_React$Component) {
+  _inheritsLoose(ReplaceTransition, _React$Component);
 
   function ReplaceTransition() {
-    var _temp, _this, _ret;
+    var _this;
 
-    _classCallCheck(this, ReplaceTransition);
-
-    for (var _len = arguments.length, args = Array(_len), _key = 0; _key < _len; _key++) {
-      args[_key] = arguments[_key];
+    for (var _len = arguments.length, _args = new Array(_len), _key = 0; _key < _len; _key++) {
+      _args[_key] = arguments[_key];
     }
 
-    return _ret = (_temp = (_this = _possibleConstructorReturn(this, _React$Component.call.apply(_React$Component, [this].concat(args))), _this), _initialiseProps.call(_this), _temp), _possibleConstructorReturn(_this, _ret);
+    _this = _React$Component.call.apply(_React$Component, [this].concat(_args)) || this;
+
+    _this.handleEnter = function () {
+      for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
+        args[_key2] = arguments[_key2];
+      }
+
+      return _this.handleLifecycle('onEnter', 0, args);
+    };
+
+    _this.handleEntering = function () {
+      for (var _len3 = arguments.length, args = new Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
+        args[_key3] = arguments[_key3];
+      }
+
+      return _this.handleLifecycle('onEntering', 0, args);
+    };
+
+    _this.handleEntered = function () {
+      for (var _len4 = arguments.length, args = new Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
+        args[_key4] = arguments[_key4];
+      }
+
+      return _this.handleLifecycle('onEntered', 0, args);
+    };
+
+    _this.handleExit = function () {
+      for (var _len5 = arguments.length, args = new Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
+        args[_key5] = arguments[_key5];
+      }
+
+      return _this.handleLifecycle('onExit', 1, args);
+    };
+
+    _this.handleExiting = function () {
+      for (var _len6 = arguments.length, args = new Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {
+        args[_key6] = arguments[_key6];
+      }
+
+      return _this.handleLifecycle('onExiting', 1, args);
+    };
+
+    _this.handleExited = function () {
+      for (var _len7 = arguments.length, args = new Array(_len7), _key7 = 0; _key7 < _len7; _key7++) {
+        args[_key7] = arguments[_key7];
+      }
+
+      return _this.handleLifecycle('onExited', 1, args);
+    };
+
+    return _this;
   }
 
-  ReplaceTransition.prototype.handleLifecycle = function handleLifecycle(handler, idx, originalArgs) {
+  var _proto = ReplaceTransition.prototype;
+
+  _proto.handleLifecycle = function handleLifecycle(handler, idx, originalArgs) {
     var _child$props;
@@ -71,3 +112,3 @@
 
-    var child = _react2.default.Children.toArray(children)[idx];
+    var child = _react.default.Children.toArray(children)[idx];
 
@@ -78,9 +119,9 @@ if (child.props[handler]) (_child$props = child.props)[handler].apply(_child$props, originalArgs);
 
-  ReplaceTransition.prototype.render = function render() {
-    var _props = this.props,
-        children = _props.children,
-        inProp = _props.in,
-        props = _objectWithoutProperties(_props, ['children', 'in']);
+  _proto.render = function render() {
+    var _this$props = this.props,
+        children = _this$props.children,
+        inProp = _this$props.in,
+        props = _objectWithoutPropertiesLoose(_this$props, ["children", "in"]);
 
-    var _React$Children$toArr = _react2.default.Children.toArray(children),
+    var _React$Children$toArr = _react.default.Children.toArray(children),
         first = _React$Children$toArr[0],
@@ -95,79 +136,21 @@ second = _React$Children$toArr[1];
     delete props.onExited;
-
-    return _react2.default.createElement(
-      _TransitionGroup2.default,
-      props,
-      inProp ? _react2.default.cloneElement(first, {
-        key: 'first',
-        onEnter: this.handleEnter,
-        onEntering: this.handleEntering,
-        onEntered: this.handleEntered
-
-      }) : _react2.default.cloneElement(second, {
-        key: 'second',
-        onEnter: this.handleExit,
-        onEntering: this.handleExiting,
-        onEntered: this.handleExited
-      })
-    );
+    return _react.default.createElement(_TransitionGroup.default, props, inProp ? _react.default.cloneElement(first, {
+      key: 'first',
+      onEnter: this.handleEnter,
+      onEntering: this.handleEntering,
+      onEntered: this.handleEntered
+    }) : _react.default.cloneElement(second, {
+      key: 'second',
+      onEnter: this.handleExit,
+      onEntering: this.handleExiting,
+      onEntered: this.handleExited
+    }));
   };
 
   return ReplaceTransition;
-}(_react2.default.Component);
+}(_react.default.Component);
 
-var _initialiseProps = function _initialiseProps() {
-  var _this2 = this;
-
-  this.handleEnter = function () {
-    for (var _len2 = arguments.length, args = Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
-      args[_key2] = arguments[_key2];
-    }
-
-    return _this2.handleLifecycle('onEnter', 0, args);
-  };
-
-  this.handleEntering = function () {
-    for (var _len3 = arguments.length, args = Array(_len3), _key3 = 0; _key3 < _len3; _key3++) {
-      args[_key3] = arguments[_key3];
-    }
-
-    return _this2.handleLifecycle('onEntering', 0, args);
-  };
-
-  this.handleEntered = function () {
-    for (var _len4 = arguments.length, args = Array(_len4), _key4 = 0; _key4 < _len4; _key4++) {
-      args[_key4] = arguments[_key4];
-    }
-
-    return _this2.handleLifecycle('onEntered', 0, args);
-  };
-
-  this.handleExit = function () {
-    for (var _len5 = arguments.length, args = Array(_len5), _key5 = 0; _key5 < _len5; _key5++) {
-      args[_key5] = arguments[_key5];
-    }
-
-    return _this2.handleLifecycle('onExit', 1, args);
-  };
-
-  this.handleExiting = function () {
-    for (var _len6 = arguments.length, args = Array(_len6), _key6 = 0; _key6 < _len6; _key6++) {
-      args[_key6] = arguments[_key6];
-    }
-
-    return _this2.handleLifecycle('onExiting', 1, args);
-  };
-
-  this.handleExited = function () {
-    for (var _len7 = arguments.length, args = Array(_len7), _key7 = 0; _key7 < _len7; _key7++) {
-      args[_key7] = arguments[_key7];
-    }
-
-    return _this2.handleLifecycle('onExited', 1, args);
-  };
-};
-
 ReplaceTransition.propTypes = process.env.NODE_ENV !== "production" ? propTypes : {};
-
-exports.default = ReplaceTransition;
-module.exports = exports['default'];
+var _default = ReplaceTransition;
+exports.default = _default;
+module.exports = exports["default"];

Transition.js

@@ -1,40 +0,33 @@
-'use strict';
+"use strict";
 
 exports.__esModule = true;
-exports.EXITING = exports.ENTERED = exports.ENTERING = exports.EXITED = exports.UNMOUNTED = undefined;
+exports.default = exports.EXITING = exports.ENTERED = exports.ENTERING = exports.EXITED = exports.UNMOUNTED = void 0;
 
-var _propTypes = require('prop-types');
+var PropTypes = _interopRequireWildcard(require("prop-types"));
 
-var PropTypes = _interopRequireWildcard(_propTypes);
+var _react = _interopRequireDefault(require("react"));
 
-var _react = require('react');
+var _reactDom = _interopRequireDefault(require("react-dom"));
 
-var _react2 = _interopRequireDefault(_react);
+var _reactLifecyclesCompat = require("react-lifecycles-compat");
 
-var _reactDom = require('react-dom');
+var _PropTypes = require("./utils/PropTypes");
 
-var _reactDom2 = _interopRequireDefault(_reactDom);
-
-var _reactLifecyclesCompat = require('react-lifecycles-compat');
-
-var _PropTypes = require('./utils/PropTypes');
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } }
+function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
 
-function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
+function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
 
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
-
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
-
-var UNMOUNTED = exports.UNMOUNTED = 'unmounted';
-var EXITED = exports.EXITED = 'exited';
-var ENTERING = exports.ENTERING = 'entering';
-var ENTERED = exports.ENTERED = 'entered';
-var EXITING = exports.EXITING = 'exiting';
-
+var UNMOUNTED = 'unmounted';
+exports.UNMOUNTED = UNMOUNTED;
+var EXITED = 'exited';
+exports.EXITED = EXITED;
+var ENTERING = 'entering';
+exports.ENTERING = ENTERING;
+var ENTERED = 'entered';
+exports.ENTERED = ENTERED;
+var EXITING = 'exiting';
 /**
@@ -134,23 +127,19 @@ * The Transition component lets you describe a transition from one component
  * > `CSSTransition`.
- *
- * ## Example
- *
- * <iframe src="https://codesandbox.io/embed/741op4mmj0?fontsize=14" style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
- *
  */
 
-var Transition = function (_React$Component) {
-  _inherits(Transition, _React$Component);
+exports.EXITING = EXITING;
 
+var Transition =
+/*#__PURE__*/
+function (_React$Component) {
+  _inheritsLoose(Transition, _React$Component);
+
   function Transition(props, context) {
-    _classCallCheck(this, Transition);
+    var _this;
 
-    var _this = _possibleConstructorReturn(this, _React$Component.call(this, props, context));
+    _this = _React$Component.call(this, props, context) || this;
+    var parentGroup = context.transitionGroup; // In the context of a TransitionGroup all enters are really appears
 
-    var parentGroup = context.transitionGroup;
-    // In the context of a TransitionGroup all enters are really appears
     var appear = parentGroup && !parentGroup.isMounting ? props.enter : props.appear;
-
-    var initialStatus = void 0;
-
+    var initialStatus;
     _this.appearStatus = null;
@@ -173,4 +162,5 @@
 
-    _this.state = { status: initialStatus };
-
+    _this.state = {
+      status: initialStatus
+    };
     _this.nextCallback = null;
@@ -180,4 +170,8 @@ return _this;
 
-  Transition.prototype.getChildContext = function getChildContext() {
-    return { transitionGroup: null // allows for nested Transitions
+  var _proto = Transition.prototype;
+
+  _proto.getChildContext = function getChildContext() {
+    return {
+      transitionGroup: null // allows for nested Transitions
+
     };
@@ -190,13 +184,12 @@ };
     if (nextIn && prevState.status === UNMOUNTED) {
-      return { status: EXITED };
+      return {
+        status: EXITED
+      };
     }
+
     return null;
-  };
-
-  // getSnapshotBeforeUpdate(prevProps) {
+  }; // getSnapshotBeforeUpdate(prevProps) {
   //   let nextStatus = null
-
   //   if (prevProps !== this.props) {
   //     const { status } = this.state
-
   //     if (this.props.in) {
@@ -212,16 +205,16 @@ //       if (status !== ENTERING && status !== ENTERED) {
   //   }
-
   //   return { nextStatus }
   // }
 
-  Transition.prototype.componentDidMount = function componentDidMount() {
+
+  _proto.componentDidMount = function componentDidMount() {
     this.updateStatus(true, this.appearStatus);
   };
 
-  Transition.prototype.componentDidUpdate = function componentDidUpdate(prevProps) {
+  _proto.componentDidUpdate = function componentDidUpdate(prevProps) {
     var nextStatus = null;
+
     if (prevProps !== this.props) {
       var status = this.state.status;
 
-
       if (this.props.in) {
@@ -237,16 +230,13 @@ if (status !== ENTERING && status !== ENTERED) {
     }
+
     this.updateStatus(false, nextStatus);
   };
 
-  Transition.prototype.componentWillUnmount = function componentWillUnmount() {
+  _proto.componentWillUnmount = function componentWillUnmount() {
     this.cancelNextCallback();
   };
 
-  Transition.prototype.getTimeouts = function getTimeouts() {
+  _proto.getTimeouts = function getTimeouts() {
     var timeout = this.props.timeout;
-
-    var exit = void 0,
-        enter = void 0,
-        appear = void 0;
-
+    var exit, enter, appear;
     exit = enter = appear = timeout;
@@ -259,8 +249,14 @@
     }
-    return { exit: exit, enter: enter, appear: appear };
+
+    return {
+      exit: exit,
+      enter: enter,
+      appear: appear
+    };
   };
 
-  Transition.prototype.updateStatus = function updateStatus() {
-    var mounting = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
-    var nextStatus = arguments[1];
+  _proto.updateStatus = function updateStatus(mounting, nextStatus) {
+    if (mounting === void 0) {
+      mounting = false;
+    }
 
@@ -270,4 +266,5 @@ if (nextStatus !== null) {
       this.cancelNextCallback();
-      var node = _reactDom2.default.findDOMNode(this);
 
+      var node = _reactDom.default.findDOMNode(this);
+
       if (nextStatus === ENTERING) {
@@ -279,19 +276,20 @@ this.performEnter(node, mounting);
     } else if (this.props.unmountOnExit && this.state.status === EXITED) {
-      this.setState({ status: UNMOUNTED });
+      this.setState({
+        status: UNMOUNTED
+      });
     }
   };
 
-  Transition.prototype.performEnter = function performEnter(node, mounting) {
+  _proto.performEnter = function performEnter(node, mounting) {
     var _this2 = this;
 
     var enter = this.props.enter;
-
     var appearing = this.context.transitionGroup ? this.context.transitionGroup.isMounting : mounting;
+    var timeouts = this.getTimeouts(); // no enter animation skip right to ENTERED
+    // if we are mounting and running this it means appear _must_ be set
 
-    var timeouts = this.getTimeouts();
-
-    // no enter animation skip right to ENTERED
-    // if we are mounting and running this it means appear _must_ be set
     if (!mounting && !enter) {
-      this.safeSetState({ status: ENTERED }, function () {
+      this.safeSetState({
+        status: ENTERED
+      }, function () {
         _this2.props.onEntered(node);
@@ -303,9 +301,12 @@ });
     this.props.onEnter(node, appearing);
+    this.safeSetState({
+      status: ENTERING
+    }, function () {
+      _this2.props.onEntering(node, appearing); // FIXME: appear timeout?
 
-    this.safeSetState({ status: ENTERING }, function () {
-      _this2.props.onEntering(node, appearing);
 
-      // FIXME: appear timeout?
       _this2.onTransitionEnd(node, timeouts.enter, function () {
-        _this2.safeSetState({ status: ENTERED }, function () {
+        _this2.safeSetState({
+          status: ENTERED
+        }, function () {
           _this2.props.onEntered(node, appearing);
@@ -317,12 +318,12 @@ });
 
-  Transition.prototype.performExit = function performExit(node) {
+  _proto.performExit = function performExit(node) {
     var _this3 = this;
 
     var exit = this.props.exit;
+    var timeouts = this.getTimeouts(); // no exit animation skip right to EXITED
 
-    var timeouts = this.getTimeouts();
-
-    // no exit animation skip right to EXITED
     if (!exit) {
-      this.safeSetState({ status: EXITED }, function () {
+      this.safeSetState({
+        status: EXITED
+      }, function () {
         _this3.props.onExited(node);
@@ -332,9 +333,13 @@ });
     }
+
     this.props.onExit(node);
-
-    this.safeSetState({ status: EXITING }, function () {
+    this.safeSetState({
+      status: EXITING
+    }, function () {
       _this3.props.onExiting(node);
 
       _this3.onTransitionEnd(node, timeouts.exit, function () {
-        _this3.safeSetState({ status: EXITED }, function () {
+        _this3.safeSetState({
+          status: EXITED
+        }, function () {
           _this3.props.onExited(node);
@@ -346,3 +351,3 @@ });
 
-  Transition.prototype.cancelNextCallback = function cancelNextCallback() {
+  _proto.cancelNextCallback = function cancelNextCallback() {
     if (this.nextCallback !== null) {
@@ -354,3 +359,3 @@ this.nextCallback.cancel();
 
-  Transition.prototype.safeSetState = function safeSetState(nextState, callback) {
+  _proto.safeSetState = function safeSetState(nextState, callback) {
     // This shouldn't be necessary, but there are weird race conditions with
@@ -363,3 +368,3 @@ // setState callbacks and unmounting in testing, so always make sure that
 
-  Transition.prototype.setNextCallback = function setNextCallback(callback) {
+  _proto.setNextCallback = function setNextCallback(callback) {
     var _this4 = this;
@@ -373,3 +378,2 @@
         _this4.nextCallback = null;
-
         callback(event);
@@ -386,3 +390,3 @@ }
 
-  Transition.prototype.onTransitionEnd = function onTransitionEnd(node, timeout, handler) {
+  _proto.onTransitionEnd = function onTransitionEnd(node, timeout, handler) {
     this.setNextCallback(handler);
@@ -394,2 +398,3 @@
       }
+
       if (timeout != null) {
@@ -403,4 +408,5 @@ setTimeout(this.nextCallback, timeout);
 
-  Transition.prototype.render = function render() {
+  _proto.render = function render() {
     var status = this.state.status;
+
     if (status === UNMOUNTED) {
@@ -410,6 +416,5 @@ return null;
 
-    var _props = this.props,
-        children = _props.children,
-        childProps = _objectWithoutProperties(_props, ['children']);
-    // filter props for Transtition
+    var _this$props = this.props,
+        children = _this$props.children,
+        childProps = _objectWithoutPropertiesLoose(_this$props, ["children"]); // filter props for Transtition
 
@@ -436,8 +441,9 @@
 
-    var child = _react2.default.Children.only(children);
-    return _react2.default.cloneElement(child, childProps);
+    var child = _react.default.Children.only(children);
+
+    return _react.default.cloneElement(child, childProps);
   };
 
   return Transition;
-}(_react2.default.Component);
+}(_react.default.Component);
 
@@ -450,4 +456,2 @@ Transition.contextTypes = {
 };
-
-
 Transition.propTypes = process.env.NODE_ENV !== "production" ? {
@@ -525,9 +529,10 @@ /**
   timeout: function timeout(props) {
-    for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
+    var pt = process.env.NODE_ENV !== "production" ? _PropTypes.timeoutsShape : {};;
+    if (!props.addEndListener) pt = pt.isRequired;
+
+    for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
       args[_key - 1] = arguments[_key];
     }
 
-    var pt = _PropTypes.timeoutsShape;
-    if (!props.addEndListener) pt = pt.isRequired;
-    return pt.apply(undefined, [props].concat(args));
+    return pt.apply(void 0, [props].concat(args));
   },
@@ -592,7 +597,8 @@
    */
-  onExited: PropTypes.func
+  onExited: PropTypes.func // Name the function so it is clearer in the documentation
 
-  // Name the function so it is clearer in the documentation
-} : {};function noop() {}
+} : {};
 
+function noop() {}
+
 Transition.defaultProps = {
@@ -605,7 +611,5 @@ in: false,
   exit: true,
-
   onEnter: noop,
   onEntering: noop,
   onEntered: noop,
-
   onExit: noop,
@@ -615,3 +619,2 @@ onExiting: noop,
 };
-
 Transition.UNMOUNTED = 0;
@@ -623,2 +626,4 @@ Transition.EXITED = 1;
 
-exports.default = (0, _reactLifecyclesCompat.polyfill)(Transition);
+var _default = (0, _reactLifecyclesCompat.polyfill)(Transition);
+
+exports.default = _default;

TransitionGroup.js

@@ -1,28 +0,23 @@
-'use strict';
+"use strict";
 
 exports.__esModule = true;
+exports.default = void 0;
 
-var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; };
+var _propTypes = _interopRequireDefault(require("prop-types"));
 
-var _propTypes = require('prop-types');
+var _react = _interopRequireDefault(require("react"));
 
-var _propTypes2 = _interopRequireDefault(_propTypes);
+var _reactLifecyclesCompat = require("react-lifecycles-compat");
 
-var _react = require('react');
+var _ChildMapping = require("./utils/ChildMapping");
 
-var _react2 = _interopRequireDefault(_react);
-
-var _reactLifecyclesCompat = require('react-lifecycles-compat');
-
-var _ChildMapping = require('./utils/ChildMapping');
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
 
-function _objectWithoutProperties(obj, keys) { var target = {}; for (var i in obj) { if (keys.indexOf(i) >= 0) continue; if (!Object.prototype.hasOwnProperty.call(obj, i)) continue; target[i] = obj[i]; } return target; }
+function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
+function _extends() { _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; return _extends.apply(this, arguments); }
 
-function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }
+function _inheritsLoose(subClass, superClass) { subClass.prototype = Object.create(superClass.prototype); subClass.prototype.constructor = subClass; subClass.__proto__ = superClass; }
 
-function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }
+function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }
 
@@ -35,3 +30,3 @@ var values = Object.values || function (obj) {
 
-var propTypes = {
+var propTypes = process.env.NODE_ENV !== "production" ? {
   /**
@@ -44,3 +39,4 @@ * `<TransitionGroup>` renders a `<div>` by default. You can change this
    */
-  component: _propTypes2.default.any,
+  component: _propTypes.default.any,
+
   /**
@@ -52,3 +48,3 @@ * A set of `<Transition>` components, that are toggled `in` and out as they
    */
-  children: _propTypes2.default.node,
+  children: _propTypes.default.node,
 
@@ -60,3 +56,4 @@ /**
    */
-  appear: _propTypes2.default.bool,
+  appear: _propTypes.default.bool,
+
   /**
@@ -67,3 +64,4 @@ * A convenience prop that enables or disables enter animations
    */
-  enter: _propTypes2.default.bool,
+  enter: _propTypes.default.bool,
+
   /**
@@ -74,3 +72,3 @@ * A convenience prop that enables or disables exit animations
    */
-  exit: _propTypes2.default.bool,
+  exit: _propTypes.default.bool,
 
@@ -87,5 +85,4 @@ /**
    */
-  childFactory: _propTypes2.default.func
-};
-
+  childFactory: _propTypes.default.func
+} : {};;
 var defaultProps = {
@@ -96,35 +93,32 @@ component: 'div',
   }
-
   /**
-   * The `<TransitionGroup>` component manages a set of `<Transition>` components
-   * in a list. Like with the `<Transition>` component, `<TransitionGroup>`, is a
-   * state machine for managing the mounting and unmounting of components over
-   * time.
+   * The `<TransitionGroup>` component manages a set of transition components
+   * (`<Transition>` and `<CSSTransition>`) in a list. Like with the transition
+   * components, `<TransitionGroup>` is a state machine for managing the mounting
+   * and unmounting of components over time.
    *
-   * Consider the example below using the `Fade` CSS transition from before.
-   * As items are removed or added to the TodoList the `in` prop is toggled
-   * automatically by the `<TransitionGroup>`. You can use _any_ `<Transition>`
-   * component in a `<TransitionGroup>`, not just css.
+   * Consider the example below. As items are removed or added to the TodoList the
+   * `in` prop is toggled automatically by the `<TransitionGroup>`.
    *
-   * ## Example
-   *
-   * <iframe src="https://codesandbox.io/embed/00rqyo26kn?fontsize=14" style="width:100%; height:500px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
-   *
    * Note that `<TransitionGroup>`  does not define any animation behavior!
-   * Exactly _how_ a list item animates is up to the individual `<Transition>`
-   * components. This means you can mix and match animations across different
-   * list items.
+   * Exactly _how_ a list item animates is up to the individual transition
+   * component. This means you can mix and match animations across different list
+   * items.
    */
+
 };
-var TransitionGroup = function (_React$Component) {
-  _inherits(TransitionGroup, _React$Component);
 
+var TransitionGroup =
+/*#__PURE__*/
+function (_React$Component) {
+  _inheritsLoose(TransitionGroup, _React$Component);
+
   function TransitionGroup(props, context) {
-    _classCallCheck(this, TransitionGroup);
+    var _this;
 
-    var _this = _possibleConstructorReturn(this, _React$Component.call(this, props, context));
+    _this = _React$Component.call(this, props, context) || this;
 
-    var handleExited = _this.handleExited.bind(_this);
+    var handleExited = _this.handleExited.bind(_assertThisInitialized(_assertThisInitialized(_this))); // Initial children should all be entering, dependent on appear
 
-    // Initial children should all be entering, dependent on appear
+
     _this.state = {
@@ -137,9 +131,13 @@ handleExited: handleExited,
 
-  TransitionGroup.prototype.getChildContext = function getChildContext() {
+  var _proto = TransitionGroup.prototype;
+
+  _proto.getChildContext = function getChildContext() {
     return {
-      transitionGroup: { isMounting: !this.appeared }
+      transitionGroup: {
+        isMounting: !this.appeared
+      }
     };
   };
 
-  TransitionGroup.prototype.componentDidMount = function componentDidMount() {
+  _proto.componentDidMount = function componentDidMount() {
     this.appeared = true;
@@ -152,3 +150,2 @@ };
         firstRender = _ref.firstRender;
-
     return {
@@ -160,5 +157,4 @@ children: firstRender ? (0, _ChildMapping.getInitialChildMapping)(nextProps, handleExited) : (0, _ChildMapping.getNextChildMapping)(nextProps, prevChildMapping, handleExited),
 
-  TransitionGroup.prototype.handleExited = function handleExited(child, node) {
+  _proto.handleExited = function handleExited(child, node) {
     var currentChildMapping = (0, _ChildMapping.getChildMapping)(this.props.children);
-
     if (child.key in currentChildMapping) return;
@@ -174,14 +170,15 @@
       delete children[child.key];
-      return { children: children };
+      return {
+        children: children
+      };
     });
   };
 
-  TransitionGroup.prototype.render = function render() {
-    var _props = this.props,
-        Component = _props.component,
-        childFactory = _props.childFactory,
-        props = _objectWithoutProperties(_props, ['component', 'childFactory']);
+  _proto.render = function render() {
+    var _this$props = this.props,
+        Component = _this$props.component,
+        childFactory = _this$props.childFactory,
+        props = _objectWithoutPropertiesLoose(_this$props, ["component", "childFactory"]);
 
     var children = values(this.state.children).map(childFactory);
-
     delete props.appear;
@@ -194,21 +191,18 @@ delete props.enter;
     }
-    return _react2.default.createElement(
-      Component,
-      props,
-      children
-    );
+
+    return _react.default.createElement(Component, props, children);
   };
 
   return TransitionGroup;
-}(_react2.default.Component);
+}(_react.default.Component);
 
 TransitionGroup.childContextTypes = {
-  transitionGroup: _propTypes2.default.object.isRequired
+  transitionGroup: _propTypes.default.object.isRequired
 };
-
-
 TransitionGroup.propTypes = process.env.NODE_ENV !== "production" ? propTypes : {};
 TransitionGroup.defaultProps = defaultProps;
 
-exports.default = (0, _reactLifecyclesCompat.polyfill)(TransitionGroup);
-module.exports = exports['default'];
+var _default = (0, _reactLifecyclesCompat.polyfill)(TransitionGroup);
+
+exports.default = _default;
+module.exports = exports["default"];

utils/ChildMapping.js

@@ -1,2 +0,2 @@
-'use strict';
+"use strict";
 
@@ -9,3 +9,3 @@ exports.__esModule = true;
 
-var _react = require('react');
+var _react = require("react");
 
@@ -32,3 +32,2 @@ /**
 }
-
 /**
@@ -51,2 +50,4 @@ * When you're adding or removing children some may be added or removed in the
  */
+
+
 function mergeChildMappings(prev, next) {
@@ -58,9 +59,9 @@ prev = prev || {};
     return key in next ? next[key] : prev[key];
-  }
+  } // For each key of `next`, the list of keys to insert before that key in
+  // the combined list
 
-  // For each key of `next`, the list of keys to insert before that key in
-  // the combined list
+
   var nextKeysPending = Object.create(null);
+  var pendingKeys = [];
 
-  var pendingKeys = [];
   for (var prevKey in prev) {
@@ -77,4 +78,5 @@ if (prevKey in next) {
 
-  var i = void 0;
+  var i;
   var childMapping = {};
+
   for (var nextKey in next) {
@@ -87,6 +89,7 @@ if (nextKeysPending[nextKey]) {
     }
+
     childMapping[nextKey] = getValueForKey(nextKey);
-  }
+  } // Finally, add the keys which didn't appear before any key in `next`
 
-  // Finally, add the keys which didn't appear before any key in `next`
+
   for (i = 0; i < pendingKeys.length; i++) {
@@ -118,15 +121,10 @@ childMapping[pendingKeys[i]] = getValueForKey(pendingKeys[i]);
   var children = mergeChildMappings(prevChildMapping, nextChildMapping);
-
   Object.keys(children).forEach(function (key) {
     var child = children[key];
-
     if (!(0, _react.isValidElement)(child)) return;
-
     var hasPrev = key in prevChildMapping;
     var hasNext = key in nextChildMapping;
-
     var prevChild = prevChildMapping[key];
-    var isLeaving = (0, _react.isValidElement)(prevChild) && !prevChild.props.in;
+    var isLeaving = (0, _react.isValidElement)(prevChild) && !prevChild.props.in; // item is new (entering)
 
-    // item is new (entering)
     if (hasNext && (!hasPrev || isLeaving)) {
@@ -143,3 +141,5 @@ // console.log('entering', key)
       // console.log('leaving', key)
-      children[key] = (0, _react.cloneElement)(child, { in: false });
+      children[key] = (0, _react.cloneElement)(child, {
+        in: false
+      });
     } else if (hasNext && hasPrev && (0, _react.isValidElement)(prevChild)) {
@@ -157,4 +157,3 @@ // item hasn't changed transition states
   });
-
   return children;
 }

utils/PropTypes.js

@@ -1,11 +0,9 @@
-'use strict';
+"use strict";
 
 exports.__esModule = true;
-exports.classNamesShape = exports.timeoutsShape = undefined;
 exports.transitionTimeout = transitionTimeout;
+exports.classNamesShape = exports.timeoutsShape = void 0;
 
-var _propTypes = require('prop-types');
+var _propTypes = _interopRequireDefault(require("prop-types"));
 
-var _propTypes2 = _interopRequireDefault(_propTypes);
-
 function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
@@ -16,3 +14,2 @@
   var enabledPropName = 'transition' + transitionType;
-
   return function (props) {
@@ -23,5 +20,3 @@ // If the transition is enabled
       if (props[timeoutPropName] == null) {
-        return new Error(timeoutPropName + ' wasn\'t supplied to CSSTransitionGroup: ' + 'this can cause unreliable animations and won\'t be supported in ' + 'a future version of React. See ' + 'https://fb.me/react-animation-transition-group-timeout for more ' + 'information.');
-
-        // If the duration isn't a number
+        return new Error(timeoutPropName + ' wasn\'t supplied to CSSTransitionGroup: ' + 'this can cause unreliable animations and won\'t be supported in ' + 'a future version of React. See ' + 'https://fb.me/react-animation-transition-group-timeout for more ' + 'information.'); // If the duration isn't a number
       } else if (typeof props[timeoutPropName] !== 'number') {
@@ -36,18 +31,22 @@ return new Error(timeoutPropName + ' must be a number (in milliseconds)');
 
-var timeoutsShape = exports.timeoutsShape = _propTypes2.default.oneOfType([_propTypes2.default.number, _propTypes2.default.shape({
-  enter: _propTypes2.default.number,
-  exit: _propTypes2.default.number
+var timeoutsShape = _propTypes.default.oneOfType([_propTypes.default.number, _propTypes.default.shape({
+  enter: _propTypes.default.number,
+  exit: _propTypes.default.number
 }).isRequired]);
 
-var classNamesShape = exports.classNamesShape = _propTypes2.default.oneOfType([_propTypes2.default.string, _propTypes2.default.shape({
-  enter: _propTypes2.default.string,
-  exit: _propTypes2.default.string,
-  active: _propTypes2.default.string
-}), _propTypes2.default.shape({
-  enter: _propTypes2.default.string,
-  enterDone: _propTypes2.default.string,
-  enterActive: _propTypes2.default.string,
-  exit: _propTypes2.default.string,
-  exitDone: _propTypes2.default.string,
-  exitActive: _propTypes2.default.string
-})]);
+exports.timeoutsShape = timeoutsShape;
+
+var classNamesShape = _propTypes.default.oneOfType([_propTypes.default.string, _propTypes.default.shape({
+  enter: _propTypes.default.string,
+  exit: _propTypes.default.string,
+  active: _propTypes.default.string
+}), _propTypes.default.shape({
+  enter: _propTypes.default.string,
+  enterDone: _propTypes.default.string,
+  enterActive: _propTypes.default.string,
+  exit: _propTypes.default.string,
+  exitDone: _propTypes.default.string,
+  exitActive: _propTypes.default.string
+})]);
+
+exports.classNamesShape = classNamesShape;

utils/SimpleSet.js

 "use strict";
 
 exports.__esModule = true;
+exports.default = void 0;
 
-function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }
-
-var SimpleSet = function () {
+var SimpleSet =
+/*#__PURE__*/
+function () {
   function SimpleSet() {
-    _classCallCheck(this, SimpleSet);
-
     this.v = [];
   }
 
-  SimpleSet.prototype.clear = function clear() {
+  var _proto = SimpleSet.prototype;
+
+  _proto.clear = function clear() {
     this.v.length = 0;
   };
 
-  SimpleSet.prototype.has = function has(k) {
+  _proto.has = function has(k) {
     return this.v.indexOf(k) !== -1;
   };
 
-  SimpleSet.prototype.add = function add(k) {
+  _proto.add = function add(k) {
     if (this.has(k)) return;
@@ -27,3 +28,3 @@ this.v.push(k);
 
-  SimpleSet.prototype.delete = function _delete(k) {
+  _proto.delete = function _delete(k) {
     var idx = this.v.indexOf(k);
@@ -30,0 +31,0 @@ if (idx === -1) return false;

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• Updatedloose-envify@^1.4.0