Promotedge Front end Developer Interview Questions and Answers

I am highly interested in developing projects and have strong dedication and time management skills.

• I am passionate about coding and enjoy working on projects.

• I am dedicated to completing tasks on time and meeting deadlines.

• I prioritize my work and manage my time effectively to ensure project success.

Lazy loading is a technique to defer loading of non-critical resources until they are needed.

• Improves page load time and performance

• Reduces initial page load size

• Used for images, videos, and other media

• Implemented using JavaScript or HTML attributes

Router in Angular is used for navigation between different components and views.

• Angular Router is a powerful tool for building single-page applications

• It allows you to define routes, which are URL patterns that map to specific components

• You can use routerLink directive to navigate between different views

• You can also use router.navigate method to programmatically navigate to a specific route

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