conorhastings/esnextbin.md

## esnextbin.md

      
    Raw
  

              esnextbin.md
            
          
    made with esnextbin

  
## index.html
<!doctype html>
<html>
<head>
  <meta charset="utf-8">
  <title>ESNextbin Sketch</title>
  <!-- put additional styles and scripts here -->
</head>
<body>
  <div id="app"></div>
  <!-- put markup and other contents here -->
</body>
</html>

## index.js
import React from 'react';
import { render } from 'react-dom';

function Whatever() {
  return <div>hello</div>;
}

console.log(Whatever.prototype);

const withKeys = (Component, keys = []) => class PureComponent extends React.Component {
	constructor() {
	  super();
		this.isReactComponent = (
			Component &&
			Component.prototype &&
			Component.prototype.isReactComponent
		);
	}

	shouldComponentUpdate(nextProps) {
		return keys.some(key => this.props[key] !== nextProps[key]);
	}
	render() {
		return this.isReactComponent ? <Component {...this.props} /> : Component(this.props);
	}
};
export default withKeys;


class Test extends React.Component {
  render() {
    return <div>hello</div>
  }
}

const T = withKeys(Test, ["hello"]);

render(<T />, document.getElementById('app'));

## package.json
{
  "name": "esnextbin-sketch",
  "version": "0.0.0",
  "dependencies": {
    "react": "15.2.1",
    "react-dom": "15.2.1",
    "babel-runtime": "6.9.2"
  }
}

## transpiled.js
'use strict';

Object.defineProperty(exports, "__esModule", {
	value: true
});

var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

var _createClass2 = require('babel-runtime/helpers/createClass');

var _createClass3 = _interopRequireDefault(_createClass2);

var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

var _inherits2 = require('babel-runtime/helpers/inherits');

var _inherits3 = _interopRequireDefault(_inherits2);

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function Whatever() {
	return _react2.default.createElement(
		'div',
		null,
		'hello'
	);
}

console.log(Whatever.prototype);

var withKeys = function withKeys(Component) {
	var keys = arguments.length <= 1 || arguments[1] === undefined ? [] : arguments[1];
	return function (_React$Component) {
		(0, _inherits3.default)(PureComponent, _React$Component);

		function PureComponent() {
			(0, _classCallCheck3.default)(this, PureComponent);

			var _this = (0, _possibleConstructorReturn3.default)(this, (0, _getPrototypeOf2.default)(PureComponent).call(this));

			_this.isReactComponent = Component && Component.prototype && Component.prototype.isReactComponent;
			return _this;
		}

		(0, _createClass3.default)(PureComponent, [{
			key: 'shouldComponentUpdate',
			value: function shouldComponentUpdate(nextProps) {
				var _this2 = this;

				return keys.some(function (key) {
					return _this2.props[key] !== nextProps[key];
				});
			}
		}, {
			key: 'render',
			value: function render() {
				return this.isReactComponent ? _react2.default.createElement(Component, this.props) : Component(this.props);
			}
		}]);
		return PureComponent;
	}(_react2.default.Component);
};
exports.default = withKeys;

var Test = function (_React$Component2) {
	(0, _inherits3.default)(Test, _React$Component2);

	function Test() {
		(0, _classCallCheck3.default)(this, Test);
		return (0, _possibleConstructorReturn3.default)(this, (0, _getPrototypeOf2.default)(Test).apply(this, arguments));
	}

	(0, _createClass3.default)(Test, [{
		key: 'render',
		value: function render() {
			return _react2.default.createElement(
				'div',
				null,
				'hello'
			);
		}
	}]);
	return Test;
}(_react2.default.Component);

var T = withKeys(Test, ["hello"]);

(0, _reactDom.render)(_react2.default.createElement(T, null), document.getElementById('app'));
	<!doctype html>
	<html>
	<head>
	<meta charset="utf-8">
	<title>ESNextbin Sketch</title>
	<!-- put additional styles and scripts here -->
	</head>
	<body>
	<div id="app"></div>
	<!-- put markup and other contents here -->
	</body>
	</html>
	import React from 'react';
	import { render } from 'react-dom';

	function Whatever() {
	return <div>hello</div>;
	}

	console.log(Whatever.prototype);

	const withKeys = (Component, keys = []) => class PureComponent extends React.Component {
	constructor() {
	super();
	this.isReactComponent = (
	Component &&
	Component.prototype &&
	Component.prototype.isReactComponent
	);
	}

	shouldComponentUpdate(nextProps) {
	return keys.some(key => this.props[key] !== nextProps[key]);
	}
	render() {
	return this.isReactComponent ? <Component {...this.props} /> : Component(this.props);
	}
	};
	export default withKeys;


	class Test extends React.Component {
	render() {
	return <div>hello</div>
	}
	}

	const T = withKeys(Test, ["hello"]);

	render(<T />, document.getElementById('app'));
	{
	"name": "esnextbin-sketch",
	"version": "0.0.0",
	"dependencies": {
	"react": "15.2.1",
	"react-dom": "15.2.1",
	"babel-runtime": "6.9.2"
	}
	}
	'use strict';

	Object.defineProperty(exports, "__esModule", {
	value: true
	});

	var _getPrototypeOf = require('babel-runtime/core-js/object/get-prototype-of');

	var _getPrototypeOf2 = _interopRequireDefault(_getPrototypeOf);

	var _classCallCheck2 = require('babel-runtime/helpers/classCallCheck');

	var _classCallCheck3 = _interopRequireDefault(_classCallCheck2);

	var _createClass2 = require('babel-runtime/helpers/createClass');

	var _createClass3 = _interopRequireDefault(_createClass2);

	var _possibleConstructorReturn2 = require('babel-runtime/helpers/possibleConstructorReturn');

	var _possibleConstructorReturn3 = _interopRequireDefault(_possibleConstructorReturn2);

	var _inherits2 = require('babel-runtime/helpers/inherits');

	var _inherits3 = _interopRequireDefault(_inherits2);

	var _react = require('react');

	var _react2 = _interopRequireDefault(_react);

	var _reactDom = require('react-dom');

	function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

	function Whatever() {
	return _react2.default.createElement(
	'div',
	null,
	'hello'
	);
	}

	console.log(Whatever.prototype);

	var withKeys = function withKeys(Component) {
	var keys = arguments.length <= 1 \|\| arguments[1] === undefined ? [] : arguments[1];
	return function (_React$Component) {
	(0, _inherits3.default)(PureComponent, _React$Component);

	function PureComponent() {
	(0, _classCallCheck3.default)(this, PureComponent);

	var _this = (0, _possibleConstructorReturn3.default)(this, (0, _getPrototypeOf2.default)(PureComponent).call(this));

	_this.isReactComponent = Component && Component.prototype && Component.prototype.isReactComponent;
	return _this;
	}

	(0, _createClass3.default)(PureComponent, [{
	key: 'shouldComponentUpdate',
	value: function shouldComponentUpdate(nextProps) {
	var _this2 = this;

	return keys.some(function (key) {
	return _this2.props[key] !== nextProps[key];
	});
	}
	}, {
	key: 'render',
	value: function render() {
	return this.isReactComponent ? _react2.default.createElement(Component, this.props) : Component(this.props);
	}
	}]);
	return PureComponent;
	}(_react2.default.Component);
	};
	exports.default = withKeys;

	var Test = function (_React$Component2) {
	(0, _inherits3.default)(Test, _React$Component2);

	function Test() {
	(0, _classCallCheck3.default)(this, Test);
	return (0, _possibleConstructorReturn3.default)(this, (0, _getPrototypeOf2.default)(Test).apply(this, arguments));
	}

	(0, _createClass3.default)(Test, [{
	key: 'render',
	value: function render() {
	return _react2.default.createElement(
	'div',
	null,
	'hello'
	);
	}
	}]);
	return Test;
	}(_react2.default.Component);

	var T = withKeys(Test, ["hello"]);

	(0, _reactDom.render)(_react2.default.createElement(T, null), document.getElementById('app'));