Zobello Front end Developer Interview Questions and Answers

To add custom JS in Magento 2, create a module and add the JS file in the module's view/frontend/web/js folder.

• Create a module in app/code directory

• Create a requirejs-config.js file in the module's view/frontend folder

• Add a reference to the JS file in the requirejs-config.js file

• Place the JS file in the module's view/frontend/web/js folder

Optimize website performance by minimizing file sizes, reducing server requests, and caching content.

• Minimize file sizes by compressing images, minifying CSS and JavaScript files

• Reduce server requests by combining multiple files into one, using CSS sprites

• Enable browser caching to store static resources locally

• Use a content delivery network (CDN) to distribute content across multiple servers

• Optimize database queries an

To override a module from a vendor, you can create a new module with the same name and modify its functionality.

• Create a new module with the same name as the vendor module

• Modify the functionality of the new module to override the vendor module

• Ensure that the new module is loaded after the vendor module to take effect