Capgemini Front end Developer Interview Questions and Answers

Q1. Basic React Question
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Q2. Basic Javascript Questions
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Q3. Coding - Finding missing values from array(Javascript), Increment & decrement count (React)
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Finding missing values in array using JavaScript and incrementing/decrementing count in React.
• Use JavaScript to find missing values in array by comparing with a reference array.

• Implement logic to increment and decrement count in React based on user interactions.

• Example: const array = ['apple', 'banana', 'orange']; const referenceArray = ['apple', 'banana', 'grape'];

• Example: Implement a counter component in React that i...read more
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Q1. What is life cycle method What hooks you have used What is map filter and reduce How to make JavaScript asynchronous What is the difference between redux thunk and redux saga What is the benefit of arrow ...read more
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Life cycle methods are methods that are automatically called at different stages of a component's life cycle in React.
• ComponentDidMount is called after the component has been rendered to the DOM.

• ComponentDidUpdate is called after the component's state or props have been updated.

• ComponentWillUnmount is called before the component is removed from the DOM.
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Q1. Reverse given array
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Reverse the given array of strings
• Use the reverse() method to reverse the array in place

• Alternatively, you can use a for loop to iterate through the array and build a new reversed array
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Q1. Call api and print data in using react
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To call an API and print data in React, use fetch or axios to make the API call and then render the data in the component.
• Use fetch or axios to make the API call in React component

• Store the API response data in state using useState hook

• Render the data in the component using JSX
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Q1. 1. Difference between client-side and server side scripting? 2. What is destructuring? 3. What is HOC? 4. Write code to combine nested array 5. Write code to count the number of vowels in a string
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1. Client-side scripting runs on the user's browser, while server-side scripting runs on the server. 2. Destructuring is a way to extract values from objects and arrays. 3. HOC stands for Higher Order Component in React. 4. Combining nested arrays involves flattening them into a single array. 5. Counting vowels in a string involves iterating through the characters and checking if they are vowels.
• Client-side scripting e...read more
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An aptitude test is a way for employers to assess a candidate's abilities through a variety of different testing formats. Aptitude tests will test your ability to perform tasks and react to situations at work. This includes problem-solving, prioritisation and numerical skills, amongst other things.

An assignment is the transfer of rights or property. In financial markets, it is a notice to an options writer that the option has been exercised.

Q1. Angular core concepts, pipes, directives.
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Flatten array, subarray