for example, there is a "repeater component" in which the next level of the content of a ul package should be a li tag. It seems that react return can only be one li at a time, but every time I want to output more than one li, I think of wrapping it in template. I try it without error, but nothing is shown in the blank page
. 
<Repeater list={[""]} />the reason is that template is parsed as a native element by react, which is not available in browsers, so there will be problems.
react is the native elementdepending on whether your Tag initials are lowercase.
that's because your browser supports template tags. You can take a look at webcomponents
found the answer
from-a-component-with-react-16/" rel=" nofollow noreferrer > Link
import React, { Component } from 'react';
export default class Repeater extends Component {
render() {
console.log(this.props);
return (
<ul>
{this.props.list.map((item, index) => {
return (
- <template key={index}>
+ <React.Fragment key={index}>
<li>{item}</li>
<li>{item}</li>
<li>{item}</li>
+ </React.Fragment>
- </template>
);
})}
</ul>
);
}
}
import React, { Component } from 'react';
export default class Repeater extends Component {
render() {
console.log(this.props);
return (
<ul>
{this.props.list.map((item, index) => {
return (
<li key={index}>{item}</li>
);
})}
</ul>
);
}
}
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