JavaScript Dialog box
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JavaScript Dialog box
All JavaScript dialog box is a predefined function which is used for to perform different-different task. Some function are given below;
| function | Discription |
|---|---|
| alert() | To give alert message to user. |
| prompt() | To input value from used. |
| confirm() | To get confirmation from user before executing some task. |
Alert()
Alert function of java script is used to give an alert message to the user.
Alert function example
Example
<!doctype html>
<html>
<head>
<script>
function alertmsg()
{
alert("Alert function call");
}
</script>
</head>
<form>
<input type="button" value="Click Me" onclick="alertmsg()"/>
</form>
</html>
Result
prompt()
Prompt function of java script is used to get input from the user.
prompt() function example
Example
<!doctype html>
<html>
<head>
<script>
function alertmsg()
{
a=prompt("Enter your name:");
alert(a);
}
</script>
</head>
<form>
<input type="button" value="Click Me" onclick="alertmsg()"/>
</form>
</html>
Result
confirm()
confirm function of java script is used to get confirmation from user before executing some task.
confirm() function example
Example
<!doctype html>
<html>
<head>
<script>
function alertmsg()
{
a=prompt("Enter your name:");
confirm(a);
}
</script>
</head>
<form>
<input type="button" value="Click Me" onclick="alertmsg()"/>
</form>
</html>
Result
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