Capgemini Senior Front end Developer Interview Questions and Answers

Q1. Interviewer asked about depth in React Js and JavaScript. JavaScript questions - Hoisting, implementation of closure, difference between call, bind & apply. Logic implementation of suggestions list in sea...read more
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Q1. He asked about both technical and non technical related questions. Previous organisation works. What i have faced difficult y in previous organisation. And some scenario based questions.
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Q1. All about technical questions for SAP Spartacus
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Q1. Salary discussion
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Q1. How are you doing?
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Q2. What do you do in your life?
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Q1. No problem with this
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Q2. The only way you could be
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First round is online assessment. Where we have multiple choice questions related to angular, css. Html, javascript

Q1. AOT. JIT compilers, Pipes, Services, Singleton component
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Q2. Have you developed website for physically challenged ppl, accessibility
Ans. 
Yes, I have experience developing websites for physically challenged individuals with a focus on accessibility.
• Implemented keyboard navigation for users with mobility impairments

• Utilized ARIA roles and attributes to improve screen reader compatibility

• Ensured color contrast and text size met WCAG standards

• Tested websites with assistive technologies like screen readers and voice recognition software
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It was a hacker coding test mostly javascript questions

Q1. React advance concept
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Q2. Context api how to use that
Ans. 
Context API is a feature in React that allows sharing data between components without having to pass props manually.
• Create a context using createContext() method

• Use the Provider component to wrap the components that need access to the context

• Access the context data using the useContext() hook within the consuming components
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Q3. Higher order component
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Q1. Mainly introduction, how do you manage a project
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Q2. How to debug a code
Ans. 
Debugging a code involves identifying and fixing errors in the code to ensure it runs correctly.
• Use console.log() statements to print out values and check for errors

• Utilize browser developer tools to inspect elements and debug JavaScript

• Step through the code using breakpoints to identify the source of the issue

• Review error messages and stack traces to pinpoint the problem

• Consider using tools like linters and debuggers
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Q3. How to get employee details using group by
Ans. 
Employee details can be retrieved using group by clause in SQL.
• Use GROUP BY clause in SQL to group employee details based on a specific column

• Aggregate functions like COUNT, SUM, AVG can be used with GROUP BY to get summarized employee details

• Example: SELECT department, COUNT(*) as total_employees FROM employees GROUP BY department
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Q1. React JS and Java script
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Q1. Basic components communication
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Q2. Forms based questions
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Q1. What is Hositing
Ans. 
Hoisting is a JavaScript mechanism where variable and function declarations are moved to the top of their containing scope during the compilation phase.
• Variable declarations are hoisted but not their initializations

• Function declarations are fully hoisted

• Hoisting can lead to unexpected behavior if not understood properly
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Q2. What is closure
Ans. 
Closure is the combination of a function bundled together with references to its surrounding state.
• 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.

• Closure helps in maintaining the state of a function and allows for data encapsulation.
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