可以动态创建props 的名称吗?例如:
let dynamicPropName = "someString";
<MyComponent dynamicPropName="some value" />
所以在MyComponent内部,这个.props .有些字符串存在.
可以动态创建props 的名称吗?例如:
let dynamicPropName = "someString";
<MyComponent dynamicPropName="some value" />
所以在MyComponent内部,这个.props .有些字符串存在.
如果使用es6,可以定义动态props :
let dynamicProps = {"dynamicKey":"someString", "dynamicKey2":"someString"};
或
let someVariable = "xyz";
dynamicProps[someVariable] = value;
then use the spread operat或:
<MyComponent {...dynamicProps} />
内霉素组分-
let props = {...this.props};
现在你可以使用Object.keys
对props
来获得所有的动态props 名称.
Edit:
class Test extends React.Component {
renderFromProps() {
return Object.keys(this.props)
.map((propKey) =>
<h3>{this.props[propKey]}</h3>
);
}
render() {
return (
<div>
<h1>One way </h1>
<hr/>
<h3>{this.props.name}</h3>
<h3>{this.props.type}</h3>
<h3>{this.props.value}</h3>
<hr/>
<h1> Another way </h1>
<hr/>
{ this.renderFromProps()}
</div>
);
}
}
const dynamicProps = { name:"Test", type:"String", value:"Hi" };
ReactDOM.render(
<Test {...dynamicProps} />,
document.getElementById('root')
);
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/react/15.1.0/react-dom.min.js"></script>
<div id="root">
</div>