Lowe's Software Engineer Interview Questions, Process, and Tips

Virtual DOM is a lightweight copy of the real DOM, used for efficient updates.

• Real DOM updates are slow and expensive, while virtual DOM updates are fast and efficient.

• Virtual DOM is used in React to update the UI without reloading the entire page.

• Real DOM is the actual HTML document, while virtual DOM is a JavaScript object.

• Virtual DOM compares the previous and current states of the UI to determine the minimum number ...read more

var is function scoped, let and const are block scoped. var can be redeclared and reassigned, let can be reassigned but not redeclared, const cannot be reassigned or redeclared.

• var is hoisted to the top of the function, let and const are not

• var can be redeclared within the same scope, let and const cannot

• let and const have a temporal dead zone where they cannot be accessed before they are declared

• const cannot be reassi...read more

Optimization techniques in React include code splitting, lazy loading, and memoization.

• Code splitting: breaking down the code into smaller chunks to reduce load time.

• Lazy loading: loading components only when they are needed, reducing initial load time.

• Memoization: caching the results of expensive function calls to improve performance.

• Using shouldComponentUpdate to prevent unnecessary re-renders.

• Using React.PureCompone...read more

I have experience working with Agile methodology in my previous projects.

• I have worked in Scrum and Kanban frameworks.

• I have experience in conducting daily stand-up meetings, sprint planning, and retrospectives.

• I have worked in cross-functional teams and have experience in collaborating with product owners and stakeholders.

• I have used tools like Jira and Trello to manage tasks and track progress.

• In one of my previous p...read more

Create dynamic buttons with JSON data, maintain active/inactive states, and show content on click

• Create buttons dynamically using JSON data

• Toggle between active and inactive states on click

• Display button content based on JSON data on click

Lowe's is a leading home improvement retailer with a strong focus on technology and innovation.

• Lowe's has a strong reputation for investing in technology and innovation within the home improvement industry.

• I am impressed by Lowe's commitment to digital transformation and their use of cutting-edge tools and technologies.

• I believe Lowe's offers a challenging and rewarding environment for software engineers to grow and de...read more

I expect a challenging work environment, opportunities for growth, and a supportive team.

• Challenging work that allows me to utilize my skills and learn new technologies

• Opportunities for career advancement and professional development

• A supportive team that fosters collaboration and growth

• Clear communication and expectations from management

Adding elements dynamically to an array in code

• Use push() method to add elements to an array in JavaScript

• In Python, use append() method to add elements to a list

• In Java, use ArrayList and add() method to dynamically add elements

Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope.

• Variable and function declarations are hoisted to the top of their scope during the compilation phase.

• Only the declarations are hoisted, not the initializations.

• Function declarations take precedence over variable declarations when hoisted.

Expected CTC should be based on industry standards, experience, skills, and location.

• Research industry standards for Software Engineer salaries

• Consider your experience level and skills when determining expected CTC

• Take into account the cost of living in the location of the job

• Negotiate based on the job responsibilities and market demand