Javascript Get Number Of Edited Updated Inputs

Imagine you've built a dynamic web form with multiple input fields, where users can update their information. In this scenario, keeping track of the number of fields that have been edited or updated can be quite useful. This is where JavaScript comes to the rescue! By understanding how to get the number of edited or updated inputs using JavaScript, you can enhance the user experience on your website. Let's dive into how you can achieve this functionality.

To start, you will need a basic understanding of JavaScript and HTML for this task. First, ensure that you have your HTML form set up with input fields that users can interact with. Each input field should have an associated event listener to detect changes made by the user.

One common approach to achieving this functionality is by adding event listeners to each input field. You can use the 'input' or 'change' event to detect when a user modifies the content of an input field. When an event is triggered, you can keep track of the edited input fields and count them.

Here's a sample code snippet to demonstrate this concept:

<title>Track Edited Inputs</title>




  <label for="name">Name:</label>
  
  <br>
  <label for="email">Email:</label>
  



const inputFields = document.querySelectorAll('input'); // Select all input fields

let editedInputs = 0; // Initialize counter for edited inputs

// Add event listeners to each input field
inputFields.forEach(input =&gt; {
  input.addEventListener('input', () =&gt; {
    if (!input.classList.contains('edited')) {
      input.classList.add('edited');
      editedInputs++;
    }
    console.log(`Number of edited inputs: ${editedInputs}`);
  });
});

In this code snippet, we first select all input fields using `document.querySelectorAll('input')`. We then iterate over each input field and add an event listener for the 'input' event. When a user edits a field, we check if the field has not been marked as edited before by checking the presence of the 'edited' class. If it's a new edit, we add the 'edited' class to the field and increment the `editedInputs` counter.

By logging the number of edited inputs to the console, you can visualize the count as users interact with the form. You can further customize this logic based on your specific requirements, such as updating a UI element to display the count dynamically.

Implementing this functionality not only provides a dynamic user experience but also equips you with valuable insights into user interactions on your website. Experiment with this code snippet, adapt it to your project's needs, and explore the endless possibilities of enhancing your web forms using JavaScript! Happy coding!