讓html標籤原樣輸出,使用dangerouslySetInnerHTML
function App() {
var name = "<span style='color: #FF0000;'>張三</span>";
return (
<div className="App">
歡迎<span dangerouslySetInnerHTML={{__html: name}}></span>進入react學習
</div>
);
}
export default App;
refs的使用,相當於js的id,獲取組件
class App extends Component {
componentDidMount() {
var i=1;
console.log(this.refs['goods_'+i+''].innerHTML);
console.log(this.refs.goods_1.innerHTML);
}
render() {
return (
<div>
<div ref="goods_1">潮流女裝</div>
</div>
)
}
}
export default App;
虛擬DOM,可以跨組件獲取組件,性能比document.getElementById好
class App extends Component {
componentDidMount() {
var i=1;
console.log(this.refs['goods_'+i+''].innerHTML);
console.log(this.refs.goods_1.innerHTML);
console.log(ReactDOM.findDOMNode(document.getElementById('goods')).innerHTML);
}
render() {
var name = "<span style='color: #FF0000;'>張三</span>";
return (
<div>
歡迎<span dangerouslySetInnerHTML={{__html: name}}/>學習
<div ref="goods_1" id='goods'>潮流女裝</div>
</div>
)
}
}
export default App;