Bootstrap 5 Alerts JavaScript behavior Events Last Updated : 25 Jul, 2024 Comments Improve Suggest changes Like Article Like Report In this article, we will learn about the Alerts JavaScript behavior Events fired when interacting with Bootstrap 5 Alerts. Bootstrap 5 Alert component is useful for providing alerts or feedback messages arising from the user interacting with the functionalities of the application.Bootstrap 5 Alerts JavaScript behavior Eventsclose.bs.alert: It is fired as soon as the close() method of the instance is called. closed.bs.alert: It is fired when the alert is completely closed after all the CSS transitions are done.Syntax:let myAlert = document.getElementById('myAlert')myAlert.addEventListener('closed.bs.alert', function () {...})Let us understand more about this using some examples below:Example 1: In this example, we will listen for the alert javascript behavior event, close.bs.alert, that gets fired immediately when an alert is closed. HTML <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Behavior events</title> <link href= "https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity= "sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous"> <script src= "https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity= "sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"> </script> </head> <body> <h1 class="text-success">GeeksforGeeks</h1> <div id="alert" role="alert" class="alert alert-warning alert-dismissible fade show" > <strong>GFG Alert!</strong> This is a sample alert from GFG. <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"> </button> </div> <script> const alert = document.getElementById('alert') alert.addEventListener('close.bs.alert', () => { console.log('close instance method called!'); }) </script> </body> </html> Output:Example 2: In this example, we will listen for the alert javascript behavior event, closed.bs.alert, that gets fired when an alert is closed completely. HTML <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Bootstrap 5 Alerts JavaScript behavior Events</title> <link href= "https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet" integrity= "sha384-EVSTQN3/azprG1Anm3QDgpJLIm9Nao0Yz1ztcQTwFspd3yD65VohhpuuCOmLASjC" crossorigin="anonymous"> <script src= "https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js" integrity= "sha384-MrcW6ZMFYlzcLA8Nl+NtUVF0sA7MsXsP1UyJoMp4YLEuNSfAP+JcXn/tWtIaxVXM" crossorigin="anonymous"> </script> </head> <body> <h1 class="text-success">GeeksforGeeks</h1> <div id="alert" class="alert alert-warning alert-dismissible fade show" > <strong>GFG Alert!</strong> This is a sample alert from GFG. <button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"> </button> </div> <script> const alert = document.getElementById('alert') alert.addEventListener('closed.bs.alert', () => { console.log('alert completely closed!'); }) </script> </body> </html> Output:Reference: https://getbootstrap.com/docs/5.0/components/alerts/#events Comment More infoAdvertise with us D dishebhbhayana Follow Improve Article Tags : Technical Scripter Web Technologies Bootstrap Technical Scripter 2022 Similar Reads Bootstrap 5 Alerts Link color Bootstrap 5 Alerts Link Color class is used to set the color of the alert element. There are different kind of alerts that indicates different things, if there is a success then the color of the alert will be green, if it's a failure then it should show a red color alert. Each color of the alert rep 3 min read Bootstrap 5 Alerts Additional Content Bootstrap Alerts help inform users about particular events or give acknowledgment. But most of the time, only simple text alerts aren't enough to convey the message. There needs to be some additional content with a proper hierarchy. In such cases, Additional Content comes into the picture. It allows 2 min read Bootstrap 5 Alerts Icons Bootstrap 5 Alerts Icons are used to add icons to the alert bar to format the bar and make it more informative. To include the icon using <svg> tag we have to define its path inside the <path> tag in svg tag. 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It is useful for displaying popup messages or user action notifications on a webpage.Bootstrap 5 Alerts Methodsclose(): It is u 2 min read Bootstrap 5 Alerts JavaScript behavior Events In this article, we will learn about the Alerts JavaScript behavior Events fired when interacting with Bootstrap 5 Alerts. Bootstrap 5 Alert component is useful for providing alerts or feedback messages arising from the user interacting with the functionalities of the application.Bootstrap 5 Alerts 2 min read Like