JavaScript Popup Boxes - W3Schools
An alert box is often used if you want to make sure information comes through to the user. When an alert box pops up, the user will have to click "OK" to proceed.
Window alert () Method - W3Schools
Description The alert() method displays an alert box with a message and an OK button. The alert() method is used when you want information to come through to the user.
How To Create an Alert Message Box - W3Schools
If you have many alert messages on a page, you can add the following script to close different alerts without using the onclick attribute on each <span> element.
W3Schools Tryit Editor
x <!DOCTYPE html> <html> <body> <h2>JavaScript Alert</h2> <button onclick="myFunction()">Try it</button> <script> function myFunction() { alert("I am an alert box!"); } </script> </body> </html>
W3Schools Tryit Editor
Test and learn JavaScript's confirm() method interactively using W3Schools Tryit Editor.
How To Make a Modal Box With CSS and JavaScript - W3Schools
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
W3Schools Tryit Editor
The W3Schools online code editor allows you to edit code and view the result in your browser
HTML onbeforeunload Event Attribute - W3Schools
This event allows you to display a message in a confirmation dialog box to inform the user whether he/she wants to stay or leave the current page. The default message that appears in the confirmation …
How To Create a Snackbar / Toast - W3Schools
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
Bootstrap Alerts - W3Schools
To close the alert message, add a .alert-dismissible class to the alert container. Then add class="close" and data-dismiss="alert" to a link or a button element (when you click on this the alert box will …