关于js复制内容到浏览器剪贴板报错：Cannot read properties of undefined (reading ‘writeText‘)的解决方案

Uncaught TypeError: Cannot read properties of undefined (reading 'writeText')

function copy(text = ''){
	let input = document.createElement('input')
	input.style.position = 'fixed'
	input.style.top = '-10000px'
	input.style.zIndex = '-999'
	document.body.appendChild(input)
	input.value = text
	input.focus()
	input.select()
	try {
	  let result = document.execCommand('copy')
	  document.body.removeChild(input)
	  if (!result || result === 'unsuccessful') {
	    console.log('复制失败')
	  } else {
	    console.log('复制成功')
	  }
	} catch (e) {
	  document.body.removeChild(input)
	  alert('当前浏览器不支持复制功能，请检查更新或更换其他浏览器操作')
	}
}

 function copyToClipboard(textToCopy) {
  	// navigator clipboard 需要https等安全上下文
    if (navigator.clipboard && window.isSecureContext) {
        // navigator clipboard 向剪贴板写文本
        return navigator.clipboard.writeText(textToCopy);
    } else {
     	// document.execCommand('copy') 向剪贴板写文本
        let input = document.createElement('input')
		input.style.position = 'fixed'
		input.style.top = '-10000px'
		input.style.zIndex = '-999'
		document.body.appendChild(input)
		input.value = textToCopy
		input.focus()
		input.select()
        try {
		  let result = document.execCommand('copy')
		  document.body.removeChild(input)
		  if (!result || result === 'unsuccessful') {
		    console.log('复制失败')
		  } else {
		    console.log('复制成功')
		  }
		} catch (e) {
		  document.body.removeChild(input)
		  alert('当前浏览器不支持复制功能，请检查更新或更换其他浏览器操作')
		}
    }
}