How to Dynamically Add Buttons in EJS Using JavaScript

Learn how to create buttons dynamically in EJS based on an array of items using JavaScript, making your web projects interactive and engaging.
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How to Dynamically Add Buttons in EJS Using JavaScript

When building web applications, it's common to have elements on the page that need to change based on user input or the data received from a server. One such requirement might be to add buttons dynamically based on the contents of a specific list. In this guide, we’ll explore how to achieve this in an EJS (Embedded JavaScript) file using JavaScript, particularly when you have an array of items that you want to translate into button elements on your page.

The Problem

Imagine you have a list containing food items like ["Salad", "Tomato", "Paste"]. You want to generate a button for each of these items on an EJS page. The challenge lies in doing this dynamically, based on the number of items in the list. This way, if the list changes, the number of buttons will adjust accordingly.

Example Use Case

If your list has three items, you want three buttons to appear on the page.

If your list has five items, then five buttons should be displayed, and so on.

The Solution

To implement this functionality, we will make use of JavaScript's forEach method to iterate through the array of items and create a button for each element. Here’s a step-by-step breakdown of how we can achieve this.

Step 1: Setting Up Your EJS File

First, ensure you have an EJS view where you want to add the buttons. You'll likely have a structure similar to this:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Create Your JavaScript Function

Now, in your JavaScript file, follow these steps:

Define your array: Start by defining the list of items that will dictate how many buttons to create.

Iterate through the array: Use the forEach method to loop through each item in the array.

Create and insert buttons: For every item, create a button and append it to the body of the HTML document.

Here is the code you’ll need:

[[See Video to Reveal this Text or Code Snippet]]

Step 3: Testing Your Implementation

After implementing the code above, load your EJS page and you should see buttons corresponding to each item in your array. When you click a button, an alert box will pop up confirming the button click.

Final Thoughts

This dynamic button creation approach allows you to respond to changing data with ease and enhance the interactivity of your web applications. Experiment with different arrays and modify the button's click functionality to create a more engaging user experience.

If you encounter any issues or have additional questions on this topic, feel free to drop a comment below. Happy coding!