Thymeleaf onclick

Thymeleaf is a popular server-side Java template engine used for building dynamic web applications. It provides various features for processing HTML, CSS, and JavaScript. One of these features is the onclick attribute, which is used to add event handling to HTML elements.

The onclick attribute is used to define a JavaScript function that will be executed when the associated HTML element is clicked. Thymeleaf onclick can be used to add dynamic behavior to HTML elements, such as toggling visibility, showing or hiding content, loading data from the server, and submitting forms.

Syntax

The syntax for using Thymeleaf onclick is as follows:

<button th:onclick="'javascript:myFunction();'">Click me</button>

Here, the th:onclick attribute is used to bind the onclick event to a JavaScript function. The javascript: prefix is added to specify that a JavaScript function is being called.

Example

Let's consider an example where we want to display a message when a button is clicked. We can use Thymeleaf onclick to handle the click event and display the message. Here's how it can be done:

<button th:text="Click me" th:onclick="'javascript:showMessage();'"></button>
<div id="message"></div>

In this example, we have a button element with the text "Click me". The th:onclick attribute is used to call the JavaScript function showMessage() when the button is clicked. The javascript: prefix is added to indicate that a JavaScript function is being called. The th:text attribute is used to set the text of the button.

We also have a div element with the id attribute set to "message". This element is used to display the message when the button is clicked. Here's the JavaScript function that will be called:

function showMessage() {
  document.getElementById('message').innerHTML = "Hello, Thymeleaf onclick!";
}

This function selects the div element with the id attribute set to "message" and sets its innerHTML to "Hello, Thymeleaf onclick!".

Conclusion

Thymeleaf onclick is a powerful feature that allows you to add dynamic behavior to HTML elements. It provides a way to handle click events, call JavaScript functions, and manipulate the DOM. By using Thymeleaf onclick, you can create interactive web applications that provide a great user experience.