Alert Box
An alert box is often used if you want to ensure information comes through to the user and it displays some information to the user.
Function
function ShowAlert()
{
alert("Hello C-sharpcorner");
}
LineBreak Box
A LineBreak alert box is often used to display line breaks inside a popup box. Use a backslash followed by the character n.
Function
function ShowLinkBreak()
{
alert("Hello \n C-sharpcorner");
}
The following example shows how to display popup boxes in JavaScript.
Complete Program
Alert_LineBreaks_PopupDemo.html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title></title>
<script type="text/javascript">
function ShowAlert()
{
alert("Hello C-sharpcorner");
}
function ShowLinkBreak()
{
alert("Hello \n C-sharpcorner");
}
</script>
</head>
<body>
<p>
<input id="Button1" type="button" value="Show Alert Box" onclick="ShowAlert()" />
<input id="Button2" type="button" value="Show LineBreak Box" onclick="ShowLinkBreak()" /></p>
</body>
</html>
Output 1
Click on the ShowAlert button.
![alert-box.jpg]()
Output 2
Click on the ShowLinkBreak button.
![line-break-box.jpg]()
For more information, download the attached sample application.