子组件: export default class Button extends React.Component {constructor(props) { super(props);}render() { return( div className="form-group" button // Need to add dynamic html attr here e.x: data-id key={index} id={id} className={`btn
export default class Button extends React.Component {
constructor(props) {
super(props);
}
render() {
return(
<div className="form-group">
<button
// Need to add dynamic html attr here e.x: data-id
key={index}
id={id}
className={`btn btn-default ${componentClass ? componentClass : null }`}
type="button"
onClick={this.props.onClick}>
{text}
</button>
</div>
);}}
父组件:
import Button from './Button';
Class App extends React.Component {
constructor(props) {
super(props);
}
render() {
return (
<div className="s">
<Button data-id="exampleData" /> // Need to add data-id attr to child button
</div>
);
}
Button Component,拥有它自己的默认属性,如上所述:id,className,type,onClick
Parent Component,将调用Button组件并添加一些其他属性,如data-id,onChange.
注意:在搜索了一些想法之后,我知道我可以使用如下的扩展运算符:
父组件:
let dynamicAttributes = {"data-id":"someString", "data-attr":"someString", "data-url":"someString"};
return (
<div className="s">
<Button dataSrc={ btnSrc } {...dynamicAttributes} />
</div>
);
我不知道如何将Button组件中的dynamicAttributes作为html属性调用
期待一个很好的解决方案.提前致谢.
使用Destructing和Babel显示错误(意外令牌),如下图所示.
注意:已经安装了预置env和预置响应.
您可以在子组件中使用rest destructuring pattern.根据documentation
Restproperties collect the remaining own enumerable property keys
that are not already picked off by thedestructuringpattern.
当你直接将道具分配给DOM元素时,你应该仔细使用rest destructing,因为从v16开始,没有对属性进行检查,所有属性都允许在DOM元素上传递,所以即使它不相关,属性将被传递给您可能不想要的DOM元素
P.S. Make sure that all properties that you don’t want to pass on to
the DOM are destructured separately.
示例代码段
export default class Button extends React.Component {
constructor(props) {
super(props);
}
render() {
const { onClick, dataSrc, ...rest } = this.props;
return(
<div className="form-group">
<button
{...rest}
key={index}
id={id}
className={`btn btn-default ${componentClass ? componentClass : null }`}
type="button"
onClick={onClick}>
{text}
</button>
</div>
);
}
}
