index
<!DOCTYPE html>
<html> <head>
<meta charset="utf-8">
<!-- Disable browser cache -->
<meta http-equiv="cache-control" content="max-age=0" />
<meta http-equiv="cache-control" content="no-cache" />
<meta http-equiv="expires" content="" />
<meta http-equiv="expires" content="Tue, 01 Jan 1980 1:00:00 GMT" />
<meta http-equiv="pragma" content="no-cache" />
<title>Project One</title>
<link rel="stylesheet" href="vendor/semantic-ui/semantic.min.css" />
<link rel="stylesheet" href="style.css" />
<script src="vendor/babel-core-5.8.25.js"></script>
<script src="vendor/react.js"></script>
<script src="vendor/react-dom.js"></script>
</head> <body>
<div class="main ui text container">
<h1 class="ui dividing centered header">Popular Products</h1>
<div id="content"></div>
</div>
<script src="./data.js"></script>
<script type="text/babel" src="./app.js"></script>
<script src="http://localhost:35729/livereload.js?snipver=1"></script>
<!-- Delete the line below to get started. -->
<!-- <script type="text/babel" src="./app-complete.js"></script> -->
</body> </html>
data：
window.Data = (function () {
function generateVoteCount() {
return Math.floor((Math.random() * ) + );
}
const data = [
{
id: ,
title: 'Yellow Pail',
description: 'On-demand sand castle construction expertise.',
url: '#',
votes: generateVoteCount(),
submitter_avatar_url: 'images/avatars/daniel.jpg',
product_image_url: 'images/products/image-aqua.png',
},
{
id: ,
title: 'Supermajority: The Fantasy Congress League',
description: 'Earn points when your favorite politicians pass legislation.',
url: '#',
votes: generateVoteCount(),
submitter_avatar_url: 'images/avatars/kristy.png',
product_image_url: 'images/products/image-rose.png',
},
{
id: ,
title: 'Tinfoild: Tailored tinfoil hats',
description: 'We already have your measurements and shipping address.',
url: '#',
votes: generateVoteCount(),
submitter_avatar_url: 'images/avatars/veronika.jpg',
product_image_url: 'images/products/image-steel.png',
},
{
id: ,
title: 'Haught or Naught',
description: 'High-minded or absent-minded? You decide.',
url: '#',
votes: generateVoteCount(),
submitter_avatar_url: 'images/avatars/molly.png',
product_image_url: 'images/products/image-yellow.png',
},
];
return data;
})();
app：
'use strict'
/**
*产品列表
**/ /* eslint-disable no-undef */ const ProductList = React.createClass({
// getInitialState: function () {
// return {
// products: [],
// };
// },
// componentDidMount: function () {
// this.updateState();
// },
// updateState: function () {
// const products = Data.sort((a, b) => {
// return b.votes - a.votes;
// });
// this.setState({ products: products });
// },
// handleUpVote: function (productId) {
// Data.forEach((el) => {
// if (el.id === productId) {
// el.votes = el.votes + 1;
// return;
// }
// });
// this.updateState();
// }, getInitialState: function() {
return {
products:[],
};
},
componentDidMount:function (){
this.updateState();
},
updateState:function(){
const products = Data.sort(function(a,b){
return b.votes - a.votes;
});
this.setState({products:products})
},
handleUpVote: function (productId) {
for(var item in Data){
if(Data[item].id == productId){
Data[item].votes = Data[item].votes +;
continue;
}
}
this.updateState();
}, render: function () {
const products = this.state.products.map((product) => {
return (
<Product
key={product.id}
id={product.id}
title={product.title}
description={product.description}
url={product.url}
votes={product.votes}
submitter={product.submitter}
submitter_avatar_url={product.submitter_avatar_url}
product_image_url={product.product_image_url}
onVote={this.handleUpVote}
/>
);
});
return (
<div className='ui items'>
{products}
</div>
);
},
}); const Product = React.createClass({
handleUpVote: function () {
this.props.onVote(this.props.id);
},
render: function () {
return (
<div className='item'>
<div className='image'>
<img src={this.props.product_image_url} />
</div>
<div className='middle aligned content'>
<div className='ui grid'>
<div className='three wide column'>
<div className='ui basic center aligned segment'>
<a onClick={this.handleUpVote}>
<i className='large caret up icon'></i>
</a>
<p><b>{this.props.votes}</b></p>
</div>
</div>
<div className='twelve wide column'>
<div className='header'>
<a href={this.props.url}>
{this.props.title}
</a>
</div>
<div className='meta'>
<span></span>
</div>
<div className='description'>
<p>{this.props.description}</p>
</div>
<div className='extra'>
<span>Submitted by:</span>
<img
className='ui avatar image'
src={this.props.submitter_avatar_url}
/>
</div>
</div>
</div>
</div>
</div>
);
},
}); ReactDOM.render(
<ProductList />,
document.getElementById('content')
);