Recro Interview Questions and Answers

Create a Flutter UI with a bottom sheet and hamburger menu for a mobile app interface.

• Use Scaffold widget to create the basic layout.

• Implement AppBar with a hamburger menu using Drawer.

• Add a BottomSheet using showModalBottomSheet method.

• Customize the BottomSheet with widgets like ListTile or Form.

• Ensure responsive design for different screen sizes.

Accessibility in web development ensures that websites are usable by people with disabilities.

• Web Content Accessibility Guidelines (WCAG) provide standards for making web content more accessible.

• Using semantic HTML elements (like <header>, <nav>, <main>, <footer>) helps screen readers understand the structure.

• Alt text for images allows visually impaired users to understand the content of im...read more

A software developer must navigate complex scenarios to deliver effective solutions and collaborate with teams.

• Understand the requirements: Gather detailed information about the problem.

• Analyze potential solutions: Evaluate different approaches and their trade-offs.

• Collaborate with team members: Engage in discussions to leverage diverse perspectives.

• Implement and test: Develop the solution and conduct thorough tes...read more

Developed a web application for managing project tasks and team collaboration, enhancing productivity and communication.

• Utilized React for the front-end, providing a responsive user interface.

• Implemented RESTful APIs using Node.js for seamless data interaction.

• Integrated real-time notifications with WebSocket for instant updates.

• Used MongoDB for a scalable database solution to store project data.

• Conducted user tes...read more

Hoisting is a behavior in JavaScript where variable and function declarations are moved to the top of their containing scope during the compilation phase.

• Variable declarations are hoisted to the top of their scope, but not their assignments.

• Function declarations are fully hoisted, meaning they can be called before they are declared.

• Hoisting can lead to unexpected behavior if not understood properly.

Closure in JavaScript is the combination of a function and the lexical environment within which that function was declared.

• Closure allows a function to access variables from its outer scope even after the outer function has finished executing.

• It is created whenever a function is defined within another function, and the inner function has access to the outer function's variables.

• Closure is commonly used in event ha...read more

Debounce technique in React helps in limiting the number of times a function is called.

• Debounce is used to delay the execution of a function until after a certain amount of time has passed without it being called again.

• It is commonly used in scenarios like search bars where you want to wait for the user to finish typing before making an API call.

• Example: Using lodash debounce function - debounce(handleSearch, 300)

Redux workflow involves actions, reducers, and a store to manage state in a predictable way.

• Actions are payloads of information that send data from your application to the Redux store.

• Reducers specify how the application's state changes in response to actions.

• The store holds the state of the application and allows access to state via getState(), update state via dispatch(action), and register listeners via subscri...read more