React Life Cycle// source http://jsbin.com/zukeyof

jsbin.zukeyof.js

'use strict';

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

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 Outer = (function (_React$Component) {
  _inherits(Outer, _React$Component);

  function Outer() {
    _classCallCheck(this, Outer);

    _get(Object.getPrototypeOf(Outer.prototype), 'constructor', this).apply(this, arguments);

    this.componentWillMount = logger('outer componentWillMount');
    this.componentDidMount = logger('outer componentDidMount');
    this.componentWillReceiveProps = logger('outer componentWillReceiveProps');
    this.shouldComponentUpdate = logger('outer shouldComponentUpdate');
    this.componentWillUpdate = logger('outer componentWillUpdate');
    this.componentDidUpdate = logger('outer componentDidUpdate');
    this.componentWillUnmount = logger('outer componentWillUnmount');
  }

  _createClass(Outer, [{
    key: 'render',
    value: function render() {
      logger('outter render')();
      return React.createElement(
        'div',
        null,
        React.createElement(Inner, { x: this.props.x })
      );
    }
  }]);

  return Outer;
})(React.Component);

var Inner = (function (_React$Component2) {
  _inherits(Inner, _React$Component2);

  function Inner() {
    _classCallCheck(this, Inner);

    _get(Object.getPrototypeOf(Inner.prototype), 'constructor', this).apply(this, arguments);

    this.componentWillMount = logger('inner componentWillMount');
    this.componentDidMount = logger('inner componentDidMount');
    this.componentWillReceiveProps = logger('inner componentWillReceiveProps');
    this.shouldComponentUpdate = logger('inner shouldComponentUpdate');
    this.componentWillUpdate = logger('inner componentWillUpdate');
    this.componentDidUpdate = logger('inner componentDidUpdate');
    this.componentWillUnmount = logger('inner componentWillUnmount');
  }

  _createClass(Inner, [{
    key: 'render',
    value: function render() {
      logger('inner render')();
      return React.createElement(
        'span',
        null,
        this.props.x
      );
    }
  }]);

  return Inner;
})(React.Component);

var logger = function logger(text) {
  return function () {
    console.log(text);
    return true;
  };
};

var App = (function (_React$Component3) {
  _inherits(App, _React$Component3);

  function App() {
    _classCallCheck(this, App);

    _get(Object.getPrototypeOf(App.prototype), 'constructor', this).apply(this, arguments);

    this.state = {
      x: 1
    };
  }

  _createClass(App, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this = this;

      setTimeout(function () {
        _this.setState({ x: 20 });
      }, 1000);
    }
  }, {
    key: 'render',
    value: function render() {
      return React.createElement(Outer, { x: this.state.x });
    }
  }]);

  return App;
})(React.Component);

var container = document.querySelector('#root');
ReactDOM.render(React.createElement(App, null), container);

setTimeout(function () {
  ReactDOM.unmountComponentAtNode(container);
}, 2000);

react-lifecycle.html

<!DOCTYPE html>
<html>
<head>
<script src="http://fb.me/react-0.13.1.js"></script>
  <meta charset="utf-8">
  <title>React Life Cycle</title>
</head>
<body>
<script src="https://fb.me/react-15.1.0.js"></script>
<script src="https://fb.me/react-dom-15.1.0.js"></script>
  <div id="root"></div>
<script id="jsbin-javascript">
'use strict';

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

var _get = function get(_x, _x2, _x3) { var _again = true; _function: while (_again) { var object = _x, property = _x2, receiver = _x3; desc = parent = getter = undefined; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x = parent; _x2 = property; _x3 = receiver; _again = true; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

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 Outer = (function (_React$Component) {
  _inherits(Outer, _React$Component);

  function Outer() {
    _classCallCheck(this, Outer);

    _get(Object.getPrototypeOf(Outer.prototype), 'constructor', this).apply(this, arguments);

    this.componentWillMount = logger('outer componentWillMount');
    this.componentDidMount = logger('outer componentDidMount');
    this.componentWillReceiveProps = logger('outer componentWillReceiveProps');
    this.shouldComponentUpdate = logger('outer shouldComponentUpdate');
    this.componentWillUpdate = logger('outer componentWillUpdate');
    this.componentDidUpdate = logger('outer componentDidUpdate');
    this.componentWillUnmount = logger('outer componentWillUnmount');
  }

  _createClass(Outer, [{
    key: 'render',
    value: function render() {
      logger('outter render')();
      return React.createElement(
        'div',
        null,
        React.createElement(Inner, { x: this.props.x })
      );
    }
  }]);

  return Outer;
})(React.Component);

var Inner = (function (_React$Component2) {
  _inherits(Inner, _React$Component2);

  function Inner() {
    _classCallCheck(this, Inner);

    _get(Object.getPrototypeOf(Inner.prototype), 'constructor', this).apply(this, arguments);

    this.componentWillMount = logger('inner componentWillMount');
    this.componentDidMount = logger('inner componentDidMount');
    this.componentWillReceiveProps = logger('inner componentWillReceiveProps');
    this.shouldComponentUpdate = logger('inner shouldComponentUpdate');
    this.componentWillUpdate = logger('inner componentWillUpdate');
    this.componentDidUpdate = logger('inner componentDidUpdate');
    this.componentWillUnmount = logger('inner componentWillUnmount');
  }

  _createClass(Inner, [{
    key: 'render',
    value: function render() {
      logger('inner render')();
      return React.createElement(
        'span',
        null,
        this.props.x
      );
    }
  }]);

  return Inner;
})(React.Component);

var logger = function logger(text) {
  return function () {
    console.log(text);
    return true;
  };
};

var App = (function (_React$Component3) {
  _inherits(App, _React$Component3);

  function App() {
    _classCallCheck(this, App);

    _get(Object.getPrototypeOf(App.prototype), 'constructor', this).apply(this, arguments);

    this.state = {
      x: 1
    };
  }

  _createClass(App, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      var _this = this;

      setTimeout(function () {
        _this.setState({ x: 20 });
      }, 1000);
    }
  }, {
    key: 'render',
    value: function render() {
      return React.createElement(Outer, { x: this.state.x });
    }
  }]);

  return App;
})(React.Component);

var container = document.querySelector('#root');
ReactDOM.render(React.createElement(App, null), container);

setTimeout(function () {
  ReactDOM.unmountComponentAtNode(container);
}, 2000);
</script>

<script id="jsbin-source-html" type="text/html"><!DOCTYPE html>
<html>
<head>
<script src="//fb.me/react-0.13.1.js"><\/script>
  <meta charset="utf-8">
  <title>React Life Cycle</title>
</head>
<body>
<script src="https://fb.me/react-15.1.0.js"><\/script>
<script src="https://fb.me/react-dom-15.1.0.js"><\/script>
  <div id="root"></div>
</body>
</html></script>


<script id="jsbin-source-javascript" type="text/javascript">    class Outer extends React.Component {
      componentWillMount = logger('outer componentWillMount');
      componentDidMount = logger('outer componentDidMount');
      componentWillReceiveProps = logger('outer componentWillReceiveProps');
      shouldComponentUpdate = logger('outer shouldComponentUpdate');
      componentWillUpdate = logger('outer componentWillUpdate');
      componentDidUpdate = logger('outer componentDidUpdate');
      componentWillUnmount = logger('outer componentWillUnmount');
      render() {
        logger('outter render')()
        return <div><Inner x={this.props.x} /></div>;
      }
    }

    class Inner extends React.Component {
      componentWillMount = logger('inner componentWillMount');
      componentDidMount = logger('inner componentDidMount');
      componentWillReceiveProps = logger('inner componentWillReceiveProps');
      shouldComponentUpdate = logger('inner shouldComponentUpdate');
      componentWillUpdate = logger('inner componentWillUpdate');
      componentDidUpdate = logger('inner componentDidUpdate');
      componentWillUnmount = logger('inner componentWillUnmount');
      render() {
        logger('inner render')()
        return <span>{this.props.x}</span>;
      }
    }

    const logger = text => () => {
      console.log(text)
      return true
    }

    class App extends React.Component {
      state = {
        x: 1
      }

      componentDidMount () {
        setTimeout(() => {
          this.setState({x: 20})
        }, 1000)
      }
      
      render () {
        return <Outer x={this.state.x} />
      }
    }

    const container = document.querySelector('#root')
    ReactDOM.render(<App />, container)

    setTimeout(() => {
      ReactDOM.unmountComponentAtNode(container)
    }, 2000)
</script></body>
</html>