appwebtech/22_refactoring.html

## 22_refactoring.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>
<script src="https://fb.me/react-with-addons-15.1.0.js"></script>
<script src="https://fb.me/react-dom-15.1.0.js"></script>

<script id="jsbin-javascript">
// Code Refactored.
// See changed Directories from Tree below

app/js
├── app.js
└── components
    ├── FilterableNameList.js
    ├── Layout.js
    ├── NameList
    │   └── NameRow.js
    ├── Timer
    │   ├── TimerButton.js
    │   └── TimerHeader.js
    └── Timer.js


// app.js
import React from 'react';
import ReactDOM from 'react-dom';

import Layout from './components/Layout';

import names from '../../mock-data';

// The convenient way to use React Classes.
class App extends React.Component {


	render() {
		return (
		React.createElement("div", null,
			React.createElement(Layout, {names: names})
		)
		)
	}
}


ReactDOM.render(
	React.createElement(App, null),
	document.getElementById('app')
	);


// Timer.js
import React from 'react';
import { TimerHeader } from './Timer/TimerHeader';
import TimerButton from './Timer/TimerButton';

export default class Timer extends React.Component {
  constructor() {
    super()
    this.state = {
      time: 0,
      isStarted: false
    }
    this.handleClick = this.handleClick.bind(this)
  }

// componentDidMount is a React built in method
// I'll use it to invoke the buttons upon mounting instead of clicking them.
  componentDidMount() {
    this.timer = setInterval(
      () => this.startTimer(),
      1000)
  }

  componentWillUnmount() {
    clearInterval(this.timer)
  }

  startTimer() {
    this.setState(prevState => ({
      time: prevState.time += 1
    }))
    this.setState({
      isStarted: true
    })
  }

  endTimer() {
    clearInterval(this.timer)
    this.setState({
      isStarted: false
    })
  }

  handleClick() {
    this.state.isStarted ?
      this.endTimer() :
      this.timer = setInterval(
        () => this.startTimer(),
        1000)
  }

  render() {
    return(
      React.createElement("div", null,
      React.createElement(TimerHeader, {time: this.state.time}),
      React.createElement(TimerButton, {handleClick: this.handleClick, isStarted: this.state.isStarted})
      )
    )
  }

}


// FilterableNameList.js
import React from 'react';

import NameRow from './NameList/NameRow';

export default class FilterableNameList extends React.Component {
  constructor() {
    super();
    this.state = {
      names: [],
      filterText: ''
    };
    this.handleClick = this.handleClick.bind(this);
    this.nameFilter = this.nameFilter.bind(this);
  }

  componentWillMount() {
    // console.log(this.props.names);
    this.setState({
      names: this.props.names
    })
  }

  handleClick(event) {
    event.preventDefault();   // Prevent link from scrolling to top page upon click.
  }

  nameFilter(event) {
    this.setState({
      filterText: event.target.value
    })
  }

  render() {
    let {names} = this.state;
    let {filterText} = this.state;
    if (filterText) {
      names = names.filter((name) => {
        let fullName = '${name.first_name} ${name.last_name}';
        return
          fullName.toLowerCase().includes(filterText.toLowerCase());
      });
    }
    return (
      React.createElement("div", null,
      React.createElement("h2", null, this.state.event),
        React.createElement("input", {onChange: this.nameFilter, type: "text"}),
        names.map((name) =>
          React.createElement(NameRow, {key: name.id, name: name})
        )
      )
    )
  }
}


// Layout.js
import React from 'react';

import NameList from './NameList';

import Timer from './Timer';


export default class Layout extends React.Component {
  constructor() {
    super();
  }

  render() {
    return (
      React.createElement("div", null,
        React.createElement("h1", null, "Just some React code..."),
        React.createElement(Timer, null),
        React.createElement("h3", null, "Just switched to the Atom text editor"),
        React.createElement("p", null, "Nam quaerat totam expedita? Officiis cumque. Eros curae, donec magna, senectus nostrum? Fusce dolores! Erat sapiente, venenatis assumenda blanditiis deserunt maiores reiciendis, modi, praesentium morbi? Litora nihil nihil aut vero suspendisse neque vel aperiam. Earum adipiscing! Illo?"),
        React.createElement(H1Styler, null,
          React.createElement(NameList, {names: this.props.names})
        )
      )
   )
  }
}

const H1Styler = (props) => {
  const blueBackground = {
    backgroundColor: "yellow"
  }
  return React.createElement("h3", {style: blueBackground}, props.children)
}


// NameRow.js
import React from 'react';

export default class NameRow extends React.Component {
  constructor() {
    super();
  }

  render() {
    let {first_name} = this.props.name;
    let {last_name} = this.props.name;
    return (
      React.createElement("h3", null, first_name, " ", last_name)
    )
  }
}
</script>


<script id="jsbin-source-javascript" type="text/javascript">// Code Refactored.


// app.js
import React from 'react';
import ReactDOM from 'react-dom';

import Layout from './components/Layout';

import names from '../../mock-data';

// The convenient way to use React Classes.
class App extends React.Component {


	render() {
		return (
		<div>
			<Layout names={names} />
		</div>
		)
	}
}


ReactDOM.render(
	<App/>,
	document.getElementById('app')
	);


// Timer.js
import React from 'react';
import { TimerHeader } from './Timer/TimerHeader';
import TimerButton from './Timer/TimerButton';

export default class Timer extends React.Component {
  constructor() {
    super()
    this.state = {
      time: 0,
      isStarted: false
    }
    this.handleClick = this.handleClick.bind(this)
  }

// componentDidMount is a React built in method
// I'll use it to invoke the buttons upon mounting instead of clicking them.
  componentDidMount() {
    this.timer = setInterval(
      () => this.startTimer(),
      1000)
  }

  componentWillUnmount() {
    clearInterval(this.timer)
  }

  startTimer() {
    this.setState(prevState => ({
      time: prevState.time += 1
    }))
    this.setState({
      isStarted: true
    })
  }

  endTimer() {
    clearInterval(this.timer)
    this.setState({
      isStarted: false
    })
  }

  handleClick() {
    this.state.isStarted ?
      this.endTimer() :
      this.timer = setInterval(
        () => this.startTimer(),
        1000)
  }

  render() {
    return(
      <div>
      <TimerHeader time={this.state.time}/>
      <TimerButton handleClick={this.handleClick} isStarted={this.state.isStarted}/>
      </div>
    )
  }

}


// FilterableNameList.js
import React from 'react';

import NameRow from './NameList/NameRow';

export default class FilterableNameList extends React.Component {
  constructor() {
    super();
    this.state = {
      names: [],
      filterText: ''
    };
    this.handleClick = this.handleClick.bind(this);
    this.nameFilter = this.nameFilter.bind(this);
  }

  componentWillMount() {
    // console.log(this.props.names);
    this.setState({
      names: this.props.names
    })
  }

  handleClick(event) {
    event.preventDefault();   // Prevent link from scrolling to top page upon click.
  }

  nameFilter(event) {
    this.setState({
      filterText: event.target.value
    })
  }

  render() {
    let {names} = this.state;
    let {filterText} = this.state;
    if (filterText) {
      names = names.filter((name) => {
        let fullName = '${name.first_name} ${name.last_name}';
        return
          fullName.toLowerCase().includes(filterText.toLowerCase());
      });
    }
    return (
      <div>
      <h2>{this.state.event}</h2>
        <input onChange={this.nameFilter} type="text"/>
        {names.map((name) =>
          <NameRow key={name.id} name={name} />
        )}
      </div>
    )
  }
}


// Layout.js
import React from 'react';

import NameList from './NameList';

import Timer from './Timer';


export default class Layout extends React.Component {
  constructor() {
    super();
  }

  render() {
    return (
      <div>
        <h1>Just some React code...</h1>
        <Timer />
        <h3>Just switched to the Atom text editor</h3>
        <p>Nam quaerat totam expedita? Officiis cumque. Eros curae, donec magna, senectus nostrum? Fusce dolores! Erat sapiente, venenatis assumenda blanditiis deserunt maiores reiciendis, modi, praesentium morbi? Litora nihil nihil aut vero suspendisse neque vel aperiam. Earum adipiscing! Illo?</p>
        <H1Styler>
          <NameList names={this.props.names} />
        </H1Styler>
      </div>
   )
  }
}

const H1Styler = (props) => {
  const blueBackground = {
    backgroundColor: "yellow"
  }
  return <h3 style={blueBackground}>{props.children}</h3>
}


// NameRow.js
import React from 'react';

export default class NameRow extends React.Component {
  constructor() {
    super();
  }

  render() {
    let {first_name} = this.props.name;
    let {last_name} = this.props.name;
    return (
      <h3>{first_name} {last_name}</h3>
    )
  }
}


</script></body>
</html>

## jsbin.paluhaxigi.js
// Code Refactored.


// app.js
import React from 'react';
import ReactDOM from 'react-dom';

import Layout from './components/Layout';

import names from '../../mock-data';

// The convenient way to use React Classes.
class App extends React.Component {


	render() {
		return (
		React.createElement("div", null,
			React.createElement(Layout, {names: names})
		)
		)
	}
}


ReactDOM.render(
	React.createElement(App, null),
	document.getElementById('app')
	);


// Timer.js
import React from 'react';
import { TimerHeader } from './Timer/TimerHeader';
import TimerButton from './Timer/TimerButton';

export default class Timer extends React.Component {
  constructor() {
    super()
    this.state = {
      time: 0,
      isStarted: false
    }
    this.handleClick = this.handleClick.bind(this)
  }

// componentDidMount is a React built in method
// I'll use it to invoke the buttons upon mounting instead of clicking them.
  componentDidMount() {
    this.timer = setInterval(
      () => this.startTimer(),
      1000)
  }

  componentWillUnmount() {
    clearInterval(this.timer)
  }

  startTimer() {
    this.setState(prevState => ({
      time: prevState.time += 1
    }))
    this.setState({
      isStarted: true
    })
  }

  endTimer() {
    clearInterval(this.timer)
    this.setState({
      isStarted: false
    })
  }

  handleClick() {
    this.state.isStarted ?
      this.endTimer() :
      this.timer = setInterval(
        () => this.startTimer(),
        1000)
  }

  render() {
    return(
      React.createElement("div", null,
      React.createElement(TimerHeader, {time: this.state.time}),
      React.createElement(TimerButton, {handleClick: this.handleClick, isStarted: this.state.isStarted})
      )
    )
  }

}


// FilterableNameList.js
import React from 'react';

import NameRow from './NameList/NameRow';

export default class FilterableNameList extends React.Component {
  constructor() {
    super();
    this.state = {
      names: [],
      filterText: ''
    };
    this.handleClick = this.handleClick.bind(this);
    this.nameFilter = this.nameFilter.bind(this);
  }

  componentWillMount() {
    // console.log(this.props.names);
    this.setState({
      names: this.props.names
    })
  }

  handleClick(event) {
    event.preventDefault();   // Prevent link from scrolling to top page upon click.
  }

  nameFilter(event) {
    this.setState({
      filterText: event.target.value
    })
  }

  render() {
    let {names} = this.state;
    let {filterText} = this.state;
    if (filterText) {
      names = names.filter((name) => {
        let fullName = '${name.first_name} ${name.last_name}';
        return
          fullName.toLowerCase().includes(filterText.toLowerCase());
      });
    }
    return (
      React.createElement("div", null,
      React.createElement("h2", null, this.state.event),
        React.createElement("input", {onChange: this.nameFilter, type: "text"}),
        names.map((name) =>
          React.createElement(NameRow, {key: name.id, name: name})
        )
      )
    )
  }
}


// Layout.js
import React from 'react';

import NameList from './NameList';

import Timer from './Timer';


export default class Layout extends React.Component {
  constructor() {
    super();
  }

  render() {
    return (
      React.createElement("div", null,
        React.createElement("h1", null, "Just some React code..."),
        React.createElement(Timer, null),
        React.createElement("h3", null, "Just switched to the Atom text editor"),
        React.createElement("p", null, "Nam quaerat totam expedita? Officiis cumque. Eros curae, donec magna, senectus nostrum? Fusce dolores! Erat sapiente, venenatis assumenda blanditiis deserunt maiores reiciendis, modi, praesentium morbi? Litora nihil nihil aut vero suspendisse neque vel aperiam. Earum adipiscing! Illo?"),
        React.createElement(H1Styler, null,
          React.createElement(NameList, {names: this.props.names})
        )
      )
   )
  }
}

const H1Styler = (props) => {
  const blueBackground = {
    backgroundColor: "yellow"
  }
  return React.createElement("h3", {style: blueBackground}, props.children)
}


// NameRow.js
import React from 'react';

export default class NameRow extends React.Component {
  constructor() {
    super();
  }

  render() {
    let {first_name} = this.props.name;
    let {last_name} = this.props.name;
    return (
      React.createElement("h3", null, first_name, " ", last_name)
    )
  }
}
	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width">
	<title>JS Bin</title>
	</head>
	<body>
	<script src="https://fb.me/react-with-addons-15.1.0.js"></script>
	<script src="https://fb.me/react-dom-15.1.0.js"></script>

	<script id="jsbin-javascript">
	// Code Refactored.
	// See changed Directories from Tree below

	app/js
	├── app.js
	└── components
	├── FilterableNameList.js
	├── Layout.js
	├── NameList
	│ └── NameRow.js
	├── Timer
	│ ├── TimerButton.js
	│ └── TimerHeader.js
	└── Timer.js



	// app.js
	import React from 'react';
	import ReactDOM from 'react-dom';

	import Layout from './components/Layout';

	import names from '../../mock-data';

	// The convenient way to use React Classes.
	class App extends React.Component {


	render() {
	return (
	React.createElement("div", null,
	React.createElement(Layout, {names: names})
	)
	)
	}
	}


	ReactDOM.render(
	React.createElement(App, null),
	document.getElementById('app')
	);


	// Timer.js
	import React from 'react';
	import { TimerHeader } from './Timer/TimerHeader';
	import TimerButton from './Timer/TimerButton';

	export default class Timer extends React.Component {
	constructor() {
	super()
	this.state = {
	time: 0,
	isStarted: false
	}
	this.handleClick = this.handleClick.bind(this)
	}

	// componentDidMount is a React built in method
	// I'll use it to invoke the buttons upon mounting instead of clicking them.
	componentDidMount() {
	this.timer = setInterval(
	() => this.startTimer(),
	1000)
	}

	componentWillUnmount() {
	clearInterval(this.timer)
	}

	startTimer() {
	this.setState(prevState => ({
	time: prevState.time += 1
	}))
	this.setState({
	isStarted: true
	})
	}

	endTimer() {
	clearInterval(this.timer)
	this.setState({
	isStarted: false
	})
	}

	handleClick() {
	this.state.isStarted ?
	this.endTimer() :
	this.timer = setInterval(
	() => this.startTimer(),
	1000)
	}

	render() {
	return(
	React.createElement("div", null,
	React.createElement(TimerHeader, {time: this.state.time}),
	React.createElement(TimerButton, {handleClick: this.handleClick, isStarted: this.state.isStarted})
	)
	)
	}

	}


	// FilterableNameList.js
	import React from 'react';

	import NameRow from './NameList/NameRow';

	export default class FilterableNameList extends React.Component {
	constructor() {
	super();
	this.state = {
	names: [],
	filterText: ''
	};
	this.handleClick = this.handleClick.bind(this);
	this.nameFilter = this.nameFilter.bind(this);
	}

	componentWillMount() {
	// console.log(this.props.names);
	this.setState({
	names: this.props.names
	})
	}

	handleClick(event) {
	event.preventDefault(); // Prevent link from scrolling to top page upon click.
	}

	nameFilter(event) {
	this.setState({
	filterText: event.target.value
	})
	}

	render() {
	let {names} = this.state;
	let {filterText} = this.state;
	if (filterText) {
	names = names.filter((name) => {
	let fullName = '${name.first_name} ${name.last_name}';
	return
	fullName.toLowerCase().includes(filterText.toLowerCase());
	});
	}
	return (
	React.createElement("div", null,
	React.createElement("h2", null, this.state.event),
	React.createElement("input", {onChange: this.nameFilter, type: "text"}),
	names.map((name) =>
	React.createElement(NameRow, {key: name.id, name: name})
	)
	)
	)
	}
	}



	// Layout.js
	import React from 'react';

	import NameList from './NameList';

	import Timer from './Timer';


	export default class Layout extends React.Component {
	constructor() {
	super();
	}

	render() {
	return (
	React.createElement("div", null,
	React.createElement("h1", null, "Just some React code..."),
	React.createElement(Timer, null),
	React.createElement("h3", null, "Just switched to the Atom text editor"),
	React.createElement("p", null, "Nam quaerat totam expedita? Officiis cumque. Eros curae, donec magna, senectus nostrum? Fusce dolores! Erat sapiente, venenatis assumenda blanditiis deserunt maiores reiciendis, modi, praesentium morbi? Litora nihil nihil aut vero suspendisse neque vel aperiam. Earum adipiscing! Illo?"),
	React.createElement(H1Styler, null,
	React.createElement(NameList, {names: this.props.names})
	)
	)
	)
	}
	}

	const H1Styler = (props) => {
	const blueBackground = {
	backgroundColor: "yellow"
	}
	return React.createElement("h3", {style: blueBackground}, props.children)
	}


	// NameRow.js
	import React from 'react';

	export default class NameRow extends React.Component {
	constructor() {
	super();
	}

	render() {
	let {first_name} = this.props.name;
	let {last_name} = this.props.name;
	return (
	React.createElement("h3", null, first_name, " ", last_name)
	)
	}
	}
	</script>



	<script id="jsbin-source-javascript" type="text/javascript">// Code Refactored.



	// app.js
	import React from 'react';
	import ReactDOM from 'react-dom';

	import Layout from './components/Layout';

	import names from '../../mock-data';

	// The convenient way to use React Classes.
	class App extends React.Component {


	render() {
	return (
	<div>
	<Layout names={names} />
	</div>
	)
	}
	}


	ReactDOM.render(
	<App/>,
	document.getElementById('app')
	);


	// Timer.js
	import React from 'react';
	import { TimerHeader } from './Timer/TimerHeader';
	import TimerButton from './Timer/TimerButton';

	export default class Timer extends React.Component {
	constructor() {
	super()
	this.state = {
	time: 0,
	isStarted: false
	}
	this.handleClick = this.handleClick.bind(this)
	}

	// componentDidMount is a React built in method
	// I'll use it to invoke the buttons upon mounting instead of clicking them.
	componentDidMount() {
	this.timer = setInterval(
	() => this.startTimer(),
	1000)
	}

	componentWillUnmount() {
	clearInterval(this.timer)
	}

	startTimer() {
	this.setState(prevState => ({
	time: prevState.time += 1
	}))
	this.setState({
	isStarted: true
	})
	}

	endTimer() {
	clearInterval(this.timer)
	this.setState({
	isStarted: false
	})
	}

	handleClick() {
	this.state.isStarted ?
	this.endTimer() :
	this.timer = setInterval(
	() => this.startTimer(),
	1000)
	}

	render() {
	return(
	<div>
	<TimerHeader time={this.state.time}/>
	<TimerButton handleClick={this.handleClick} isStarted={this.state.isStarted}/>
	</div>
	)
	}

	}


	// FilterableNameList.js
	import React from 'react';

	import NameRow from './NameList/NameRow';

	export default class FilterableNameList extends React.Component {
	constructor() {
	super();
	this.state = {
	names: [],
	filterText: ''
	};
	this.handleClick = this.handleClick.bind(this);
	this.nameFilter = this.nameFilter.bind(this);
	}

	componentWillMount() {
	// console.log(this.props.names);
	this.setState({
	names: this.props.names
	})
	}

	handleClick(event) {
	event.preventDefault(); // Prevent link from scrolling to top page upon click.
	}

	nameFilter(event) {
	this.setState({
	filterText: event.target.value
	})
	}

	render() {
	let {names} = this.state;
	let {filterText} = this.state;
	if (filterText) {
	names = names.filter((name) => {
	let fullName = '${name.first_name} ${name.last_name}';
	return
	fullName.toLowerCase().includes(filterText.toLowerCase());
	});
	}
	return (
	<div>
	<h2>{this.state.event}</h2>
	<input onChange={this.nameFilter} type="text"/>
	{names.map((name) =>
	<NameRow key={name.id} name={name} />
	)}
	</div>
	)
	}
	}



	// Layout.js
	import React from 'react';

	import NameList from './NameList';

	import Timer from './Timer';


	export default class Layout extends React.Component {
	constructor() {
	super();
	}

	render() {
	return (
	<div>
	<h1>Just some React code...</h1>
	<Timer />
	<h3>Just switched to the Atom text editor</h3>
	<p>Nam quaerat totam expedita? Officiis cumque. Eros curae, donec magna, senectus nostrum? Fusce dolores! Erat sapiente, venenatis assumenda blanditiis deserunt maiores reiciendis, modi, praesentium morbi? Litora nihil nihil aut vero suspendisse neque vel aperiam. Earum adipiscing! Illo?</p>
	<H1Styler>
	<NameList names={this.props.names} />
	</H1Styler>
	</div>
	)
	}
	}

	const H1Styler = (props) => {
	const blueBackground = {
	backgroundColor: "yellow"
	}
	return <h3 style={blueBackground}>{props.children}</h3>
	}


	// NameRow.js
	import React from 'react';

	export default class NameRow extends React.Component {
	constructor() {
	super();
	}

	render() {
	let {first_name} = this.props.name;
	let {last_name} = this.props.name;
	return (
	<h3>{first_name} {last_name}</h3>
	)
	}
	}




	</script></body>
	</html>