OneAssist Consumer Solutions Senior Software Engineer Interview Questions and Answers

Q1. Explain how javascript works
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JavaScript is a high-level, interpreted programming language that is used to make web pages interactive.
• JavaScript is a client-side scripting language that runs in the browser.

• It is used to add interactivity to websites, such as form validation, animations, and dynamic content.

• JavaScript code is executed line by line and can manipulate the HTML and CSS of a webpage.

• It can also communicate with servers to retrieve or se
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Q1. Build a to do app in react
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A to do app built in React for managing tasks and deadlines.
• Use React components to create a user interface for adding, editing, and deleting tasks

• Implement state management to keep track of tasks and their completion status

• Utilize local storage or a backend server to persist tasks between sessions
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DSA round. DP and Gaph

Q1. Java,Springboot,Hibernate,JPA
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Q1. Tell me more about your experience
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Basic aptitude questions and 2 hard DP questions in the Online Test .

Q1. Basic SQL queries
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Q2. OOP questions Java
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Q3. Puzzles from Geeksforgeeks
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Q4. DSA questions - medium level
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Q1. DSA and array manipulation
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Q1. ReactJS features
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Q1. Hoisting, clousres, prototypes based output questions
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Q2. Polyfill of reduce, map
Ans. 
Polyfill of reduce, map are functions that mimic the behavior of the original functions in older browsers.
• Polyfill of reduce function can be implemented using a for loop to iterate over the array and accumulate the result.

• Polyfill of map function can be implemented using a for loop to iterate over the array and create a new array with the transformed values.

• These polyfills are useful for ensuring cross-browser compatib...read more
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Q1. Project discussion, react lifecycle, javascript basec concepts
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Q1. Behaviour of js
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JavaScript is a dynamic programming language commonly used for web development.
• JavaScript is a high-level, interpreted language.

• It is known for its flexibility and ability to manipulate the DOM.

• Commonly used for client-side scripting in web development.

• Supports object-oriented, imperative, and functional programming styles.
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Q2. Call by value, call by reference
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Reverse fibonacci using recursion