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Javascript implements pop-up confirmation box before deletion

高洛峰Original: 2016-12-17 13:49:271384browse

Requirement: When the user clicks the delete button, a confirmation box will pop up. If the user clicks "OK", the deletion operation will be performed. Otherwise, the

JS code

function del() {
var msg = "您真的确定要删除吗？\n\n请确认！";
if (confirm(msg)==true){
return true;
}else{
return false;
}
}

html code

<a href="" onclick="javascript:return del();">删除</a>

Method 2:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> 
<title>确认是否删除</title> 
<script type="text/javascript"> 
function del(){ 
if(!confirm("确认要删除？")){ 
window.event.returnValue = false; 
} 
} 
</script> 
</head> 
<body> 
<a href="http://www.baidu.com" onclick="return del()">删除</a> 
</body> 
</html>

Method 3:

<a href="javascript:if(confirm(&#39;确实要删除吗?&#39;))location=&#39;jb51.php?id=&#39;">删除</a>

will not be executed

Method 4:

<script type="text/javascript" language="javascript"> 
<!-- 
function confirmAct() 
{ 
  if(confirm(&#39;确定要执行此操作吗?&#39;)) 
  { 
    return true; 
  } 
  return false; 
} 
//-->
</script> 
  
<a href="operate.php?mod=user&act=delete&id=564" onclick="return confirmAct();">执行操作</a>

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