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📜  点击复制反应 - Javascript代码示例

📅  最后修改于: 2022-03-11 15:03:02.242000             🧑  作者: Mango

代码示例4
import React, { useRef, useState } from 'react';

export default function CopyExample() {

  const [copySuccess, setCopySuccess] = useState('');
  const textAreaRef = useRef(null);

  function copyToClipboard(e) {
    textAreaRef.current.select();
    document.execCommand('copy');
    // This is just personal preference.
    // I prefer to not show the the whole text area selected.
    e.target.focus();
    setCopySuccess('Copied!');
  };

  return (
    

      {
       /* Logical shortcut for only displaying the 
          button if the copy command exists */
       document.queryCommandSupported('copy') &&
        

           
          {copySuccess}
        

      }