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Uncaught TypeError: $(...).toast is not a function

Created at 27-Aug-2021 , By samar

We’ll attempt to use programming in this lesson to solve the "Uncaught TypeError: $(...).toast is not a function" puzzle.

Sometimes we get an error Uncaught TypeError: $(...).toast is not a function in the console using the toast() method in the HTML page. There could be any reason for it but in my case i have not used the right bootstrap version to use the toast. Maybe it helps you to find out the solution for this error in your case.

Bootstrap 4.3.1 toasts example code

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Bootstrap toast notification</title>
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css" integrity="sha384-ggOyR0iXCbMQv3Xipma34MD+dH/1fQ784/j6cY/iJTQUOhcWr7x9JvoRxT2MZw1T" crossorigin="anonymous">
</head>
<body>
	
    <div class="toast" id="element" role="alert" aria-live="assertive" aria-atomic="true">
        <div class="toast-body">
            Hello, world! This is a toast message.
        </div>
    </div>
  
    <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>
  
    <script>
        $(document).ready(function(){
            $('#element').toast('show');
        })
    </script>
</body>
</html>

You can display the toast notifications using bootstrap version 4.3.1. You can show toast notification with $('#element').toast('show'); on different events like click, document ready, on change and others.

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Uncaught TypeError: $(...).toast is not a function

Bootstrap 4.3.1 toasts example code

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