📅  最后修改于: 2022-03-11 15:02:20.141000             🧑  作者: Mango
import React, { useRef, useEffect } from 'react';
import ReactDOM from 'react-dom';
const words = ['Many', 'Words'];
const App = () => {
const wordsRef = useRef([]);
const displayWords = words.map((word, i) => (
(wordsRef.current = [...wordsRef.current, el])}>
{word}
));
useEffect(() => {
console.log(wordsRef);
console.log(wordsRef.current[0].classList);
});
return {displayWords};
};
ReactDOM.render( , document.getElementById('root'));