Coditas Technologies Reactjs Developer Interview Questions and Answers

Q1. Server side rendering, routes
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Q2. Securing frontend apps
Ans. 
Securing frontend apps involves implementing security measures to protect against common vulnerabilities.
• Use HTTPS to encrypt data transmitted between the frontend and backend

• Implement input validation to prevent injection attacks

• Avoid storing sensitive information in local storage

• Use Content Security Policy (CSP) to prevent cross-site scripting (XSS) attacks
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Logical thinking and quantitative

One Java and one SQL and one js question

Q1. What is collections
Ans. 
Collections are data structures that store and organize multiple elements in a single unit.
• Collections provide methods to add, remove, and manipulate elements.

• Examples of collections include arrays, lists, sets, and maps.

• Collections can be used to efficiently manage and access large amounts of data.
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Q2. What is constructor
Ans. 
A constructor is a special method in a class that is automatically called when an object of that class is created.
• Constructors have the same name as the class they belong to

• They are used to initialize the object's state

• Constructors can have parameters to customize the initialization process
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Q3. What is data science
Ans. 
Data science is a field that uses scientific methods, algorithms, and systems to extract knowledge and insights from structured and unstructured data.
• Data science involves collecting, analyzing, and interpreting large amounts of data to make informed decisions.

• It combines statistics, machine learning, and domain knowledge to uncover patterns and trends in data.

• Data scientists use programming languages like Python and R...read more
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Optional coding questions and one logical question.

Q1. Mostly JavaScript-related questions like Hoisting, Closure, memory allocation
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Q2. React related question like how react works.
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It developed the power of mind

How to implement the code and wher it implemented .

3 coding question , leetcode easy medium and mcqs

Q1. Java spring boot questions
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Q2. One coding question
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Q1. Basic questions regarding Python e.g. magic functions, constructor in python, list, tuple
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Q2. Basic questions regarding FastAPI e.g. what is pydantic, ORM usage, BaseModel etc.
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Q3. Basic questions regarding SQL e.g. No-SQL vs SQL, Indexing,
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