Web App Tutorial #4: CRUD Delete

In this tutorial, we will focus on the Delete operation in CRUD (Create, Read, Update, Delete) for a web application. Deleting data is an important functionality in any web app as it allows users to remove unwanted or outdated information.

Step 1: Create a Delete Button

First, we need to add a delete button to our web app interface. This button will trigger the delete operation when clicked by the user.

“`html
Delete
“`

Step 2: Implement the Delete Function

Next, we need to create a function in our web app’s script to handle the delete operation. This function will send a request to the server to delete the specified data.

“`html

function deleteData() {
// Send a request to the server to delete data
// Implement your delete logic here
}

“`

Step 3: Confirm Deletion

It’s a good practice to confirm with the user before deleting any data. We can achieve this by adding a confirmation dialog in our delete function.

“`html

function deleteData() {
if (confirm(“Are you sure you want to delete this data?”)) {
// Implement delete logic here
}
}

“`

Step 4: Test the Delete Functionality

Finally, test the delete functionality by clicking on the delete button and confirming the deletion. Make sure that the data is successfully removed from the server.

Congratulations! You have successfully implemented the Delete operation in CRUD for your web application. Stay tuned for more web app tutorials!