空的“的addEventListener”当我点击检查元素,我得到了拷贝剪贴板工具提示错误:无法读取财产copycode.js
无法读取空的特性“的addEventListener”。
下面是我的JS代码:
createtooltip()
var buddhaquote = document.getElementById('mytext')
buddhaquote.addEventListener('mouseup', function(e){
var selected = getSelectionText() // call getSelectionText() to see what was selected
if (selected.length > 0){ // if selected text length is greater than 0
var copysuccess = copySelectionText() // copy user selected text to clipboard
showtooltip(e)
}
}, false)
如何在'console.log'中打印'budhaquote'变量?或者,也许只是在控制台中运行'document.getElementById('mytext')'? –