JQuery Tutorial: Project - Tag Input

Welcome to the JQuery Tag Input Project tutorial! 🎯 In this lesson, we'll create a real-world project where we'll learn to implement tag input functionality using JQuery. This is a great project for both beginners and intermediate learners looking to enhance their skills. Let's dive right in!

What is Tag Input?

Tag input is a user interface element that allows users to add multiple keywords, labels, or tags to a form. These tags are usually separated by commas, and they provide a quick way to add multiple related items to a data set.

Why Use JQuery for Tag Input?

JQuery makes it easy to manipulate HTML documents and handle events, which are crucial for implementing tag input functionality. With its clean and simple syntax, you can create interactive user interfaces with minimal effort.

Getting Started

Before we begin, make sure you have a basic understanding of HTML and CSS. If you're new to JQuery, we recommend going through our JQuery tutorials first.

Setting Up the Project

Create an HTML file named tag-input.html.
Link the JQuery library by adding the following script tag in the <head> section:

html

<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>

Creating a Basic Tag Input

Let's create a simple tag input where users can add tags one by one.

Create a <div> element for the tag input area and give it a unique id, such as tag-input.

html

<div id="tag-input">
  <!-- Empty for now -->
</div>

Add an input field and a button for adding new tags.

html

<input type="text" id="tag-input-field" />
<button id="add-tag">Add Tag</button>

Write the JQuery code to handle the click event on the add-tag button and add the entered tag to the tag input area.

javascript

$(document).ready(function() {
  $('#add-tag').click(function() {
    // Get the entered tag
    var tag = $('#tag-input-field').val();

    // Add the tag to the tag input area
    $('#tag-input').append('<span class="tag">' + tag + '</span>');

    // Clear the input field
    $('#tag-input-field').val('');
  });
});

Now, when you click the "Add Tag" button, it will add the entered tag to the tag input area.

Quick Quiz

Question 1 of 1

What does the `#add-tag` selector do in our JQuery code?

Implementing Tag Removal

To make our tag input more interactive, let's add the ability to remove tags.

Add a class remove to the remove button that will be created for each tag.

html

<span class="tag remove"><span class="tag-content">Your Tag</span><button class="remove-btn">x</button></span>

Write the JQuery code to handle the click event on the remove button and remove the corresponding tag from the tag input area.

javascript

$(document).ready(function() {
  // Bind click event for remove buttons
  $(document).on('click', '.remove-btn', function() {
    $(this).parent().remove();
  });
});

Now, when you click the "x" button next to a tag, it will be removed from the tag input area.

Quick Quiz

Question 1 of 1

How do we bind the click event for the remove buttons in our JQuery code?

Wrapping Up

Congratulations! You've successfully created a tag input with JQuery. In this tutorial, you learned how to add and remove tags from a tag input area, handling user interactions with JQuery, and making real-world applications more interactive.

📝 Note: The complete code for this tutorial can be found in the CodeYourCraft JQuery Tag Input Tutorial.

Next Steps

Explore more JQuery plugins for tag input like jQuery Tags Input and Bootstrap Tags Input
Learn about JQuery UI Autocomplete and implement suggestions for tags.
Create a server-side implementation for saving and retrieving tag data.

Happy coding! 💡