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React 进入页面以后自动 focus 到某个输入框(输入框在子组件中)

张宏涛心理 2022-07-01 阅读 71
import React, { useState, useEffect } from 'react';

const FancyInput = React.forwardRef((props, ref) => (
<input ref={ref} placeholder={props.placeholder} >
</input>
));

function LoadingButton() {
const ref = React.createRef();

useEffect(() => {
console.log(ref)
ref.current.focus()
}, [])
return (
<div className="m-test-wrap">
<FancyInput ref={ref} placeholder="enter"></FancyInput>
</div>
);
}

export default LoadingButton;


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