Bootstrap 5 Alerts JavaScript behavior Last Updated : 25 Jan, 2023 Comments Improve Suggest changes Like Article Like Report Bootstrap 5 Alerts JavaScript behavior provides to enable the dismissal of an alert when an action is triggered. In addition to this, alert instances can be created with the help of the alert constructor. Although, there are a few events that enable the alert functionality by implementing Bootstrap’s alert plugin. Bootstrap 5 Alerts JavaScript Behavior: Trigger: This component helps to create the dismissible alerts by using bootstrap alerts Enable dismissal for an alert component via Java Script.Methods: Methods are the function that adds more functionalities to our Bootstrap alert. There are Some methods like close, dispose, getInstance, and getOrCreateInstance.Events: This component enables a few alert functionality events by implementing Bootstrap’s alert plugins. Example 1: This example describes the basic usage of the Bootstrap 5 Alerts JavaScript behavior. HTML <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href= "https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" rel="stylesheet"> <script src= "https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.bundle.min.js"> </script> </head> <body class="text-center mt-3"> <h1 class="text-success">GeeksforGeeks</h1> <h3>Bootstrap Alert javascript behavior</h3> <div id="AlertDiv"></div> <button type="button" class="btn btn-primary btn-lg" id="AlertBtn"> Click me to show alert </button> <script type="text/javascript"> const alertPlaceholder = document.getElementById('AlertDiv') const alert = (message, type) => { const wrapper = document.createElement('div') wrapper.innerHTML = [ `<div class="alert alert-${type} alert-dismissible" role="alert">`, `<div>${message}</div>`, '<button type="button" class="btn-close" data-bs-dismiss="alert" aria-label="Close"></button>', '</div>' ].join('') alertPlaceholder.append(wrapper) } const alertTrigger = document.getElementById('AlertBtn') if (alertTrigger) { alertTrigger.addEventListener('click', () => { alert('Bootstrap 5 Alert message triggered', 'danger') }) } </script> </body> </html> Output: Example 2: In this example, we have demonstrated Bootstrap 5 Alerts JavaScript behavior by clicking the close button. 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"> <link rel="stylesheet" href= "https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css" /> <script src= "https://cdn.jsdelivr.net/npm/[email protected]/dist/js/bootstrap.min.js"> </script> </head> <body> <div class="container"> <div class="mt-4"> <h1 class="text-success"> GeeksforGeeks </h1> <h3> Bootstrap 5 Alerts JavaScript behavior </h3> </div> <div class="alert alert-success mt-4"> Hello Geek! Welcome to GeeksforGeeks. <button class="btn-close ml-5" data-bs-dismiss="alert"> </button> </div> <script> var allAlerts = document.querySelectorAll('.alert'); allAlerts.forEach(function (el) { new bootstrap.Alert(el); }); </script> </div> </body> </html> Output: Reference: https://getbootstrap.com/docs/5.0/components/alerts/#javascript-behavior Comment More infoAdvertise with us Next Article Bootstrap 5 Alerts JavaScript behavior Triggers J jayadeepreddypeddireddy Follow Improve Article Tags : Technical Scripter Web Technologies Bootstrap Technical Scripter 2022 Bootstrap-5 +1 More 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. We also need to specify its height and width to adjust its size according to th 2 min read Bootstrap 5 Alerts Dismissing Bootstrap 5 Alerts Dismissing provides a feature to dismiss the alerts inline and to enable alerts dismissing we need to add the .alert-dismissible class to the alert, and the data-bs-dismiss="alert" attribute to the close button.Syntax:<div class="alert alert-dismissible"> <button type="bu 2 min read Bootstrap 5 Alerts SASS Bootstrap 5 Alerts SASS can be used to change the default values provided for the alert by customizing the SCSS file. SASS variables of Alerts: $alert-padding-y: This variable provides the top and bottom padding of the alert. By default, it is 1rem.$alert-padding-x: This variable provides the left a 5 min read Bootstrap 5 Alerts JavaScript behavior Bootstrap 5 Alerts JavaScript behavior provides to enable the dismissal of an alert when an action is triggered. In addition to this, alert instances can be created with the help of the alert constructor. Although, there are a few events that enable the alert functionality by implementing Bootstrap’ 2 min read Bootstrap 5 Alerts JavaScript behavior Triggers Bootstrap 5 Alert Triggers are used to close an alert. An alert can be closed using a close button inside the alert or by using a button outside the alert with a data-bs-target attribute. It should be noted that closing the alert also removes it from the DOM.Bootstrap 5 Alert Triggers used attribute 2 min read Bootstrap 5 Alerts JavaScript Behavior Methods Bootstrap 5 Alerts methods that are used to control the visibility of the alert component. For example, these methods can be used to close or dispose of an alert component. 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