JavaScript confirm message dialog

The confirm message dialog box is usually used to allow the user to make a selection action, such as: "Are you sure you want to close this window?" and so on. Popup dialog includes an OK button and a Cancel button.

Syntax:

confirm(str);

Parameter Description:

str: the text to be displayed in the message dialog 
Return value: Boolean value

return value:

Returns true when the user clicks the "OK" button
When the user clicks the "Cancel" button, return false

Note: You can check what button the user clicked by the return value

Look at the code below:

<script type="text/javascript">
    var mymessage=confirm("Do you like JavaScript?");
    if(mymessage==true)
    { 
document.write("Very good, come on!"); 
} else { 
document.write("JS is powerful, learn it!"); 
}
</script>

result:

Note: The message dialog is exclusive, that is, the user cannot perform any other operations before clicking the dialog button.

Task - Exercise 12

Complete the code on line 9, use the confirm() prompt box to determine user's gender, when the button is clicked, the gender confirmation is completed.

Task Code

<!DOCTYPE HTML>
<html>

<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>confirm</title>
    <script type="text/javascript">
        function check() {
            var mymessage = ;
            if (mymessage == true) {
                document.write("You are a lady!");
            }
            else {
                document.write("You are a man!");
            }
        }
    </script>
</head>

<body>
    <input name="button" type="button" onClick="check()" value="Click me,
 to confirm" />
</body>

</html>

Task - Exercise 12

Task Code

Robort Gabriel

Lagos, Nigeria

Skills