Update script.js

[Imran-imtiaz48]

Changes made:

1. Wrapped the code in DOMContentLoaded to ensure it runs after the DOM is fully loaded.
2. Added a check to ensure left, right, and container elements are present before adding event listeners.
3. Improved formatting for readability and consistency.

[tajulafreen]

Hi @Imran-imtiaz48,
Thanks for your contributions!

The changes you made are great:

Wrapping the code in DOMContentLoaded ensures the code runs only after the DOM is ready, making it more reliable.

• Adding the check to ensure the necessary elements exist before adding event listeners prevents potential errors and makes the code more robust.
• And the improved formatting makes the code much easier to read and understand.
• It's awesome that you're thinking about these details!

Just one more thing - I'm seeing some linter errors. Could you please address those before I merge the pull request?
Kindly Run this command to solve the error.

npx eslint . --fix

Once those are resolved, I'll be happy to merge them. Thanks again!

[Imran-imtiaz48]

To address the linter errors, you can follow these steps:

1. Ensure you have ESLint installed: If ESLint is not already installed in your project, you can install it by running:
   bash
   Copy code
   npm install eslint --save-dev
2. Run ESLint with the --fix option: This will automatically fix many of the common linting errors.
   bash
   Copy code
   npx eslint . --fix
   This command will run ESLint on your project and attempt to fix any linting issues it finds.