Web Developer

100+ Web Developer Interview Questions and Answers for Freshers

Updated 19 Jul 2025
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3d ago

Q. Have you ever used Git, and if so, can you explain how it works?

Ans.

Git is a version control system that tracks changes in code, enabling collaboration and version management.

  • Git allows multiple developers to work on the same project simultaneously without conflicts.

  • It uses a local repository to track changes, which can be synced with a remote repository (e.g., GitHub).

  • Common commands include 'git init' to create a repository, 'git add' to stage changes, and 'git commit' to save changes.

  • Branches can be created using 'git branch' to work on fe...read more

1w ago

Q. How would you find the maximum value in a given array of numbers?

Ans.

To find the maximum value in an array, iterate through the elements and keep track of the highest value encountered.

  • Initialize a variable to hold the maximum value, e.g., `maxValue = array[0]`.

  • Loop through each element in the array using a for loop.

  • Compare each element with the current maximum value.

  • If an element is greater than `maxValue`, update `maxValue`.

  • Return `maxValue` after completing the loop.

  • Example: For array [3, 5, 2, 8, 1], the maximum value is 8.

1w ago

Q. What is a scripting language?

Ans.

A scripting language is a programming language that is used to write scripts, which are small programs that automate tasks.

  • Scripting languages are interpreted rather than compiled

  • They are often used for tasks such as web development, system administration, and automation

  • Examples of scripting languages include JavaScript, Python, Ruby, and PHP

5d ago

Q. Can you explain the difference between == and === in JavaScript?

Ans.

In JavaScript, == checks for value equality, while === checks for both value and type equality.

  • == (loose equality) converts types if they are different: 5 == '5' is true.

  • === (strict equality) does not convert types: 5 === '5' is false.

  • Use === to avoid unexpected type coercion and ensure both value and type match.

  • Example: null == undefined is true, but null === undefined is false.

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5d ago

Q. What is the purpose of using React hooks like useState and useEffect?

Ans.

React hooks like useState and useEffect manage state and side effects in functional components, enhancing code reusability and readability.

  • useState allows functional components to manage local state. Example: const [count, setCount] = useState(0);

  • useEffect handles side effects like data fetching or subscriptions. Example: useEffect(() => { fetchData(); }, []);

  • Both hooks promote cleaner code by avoiding class components and enabling functional programming patterns.

  • useEffect ca...read more

Asked in Zoho

6d ago

Q. What are the main topics in the Python syllabus?

Ans.

Python's main syllabus includes data types, control structures, functions, modules, classes, and libraries.

  • Data types such as integers, floats, strings, lists, tuples, dictionaries

  • Control structures like if-else statements, loops

  • Functions for code reusability

  • Modules for organizing code

  • Classes for object-oriented programming

  • Libraries like NumPy, Pandas, and Matplotlib for data manipulation and visualization

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2d ago

Q. What is an HTML container tag? Provide an example.

Ans.

HTML container tags are used to group and define sections of content on a webpage.

  • The <div> tag is used to group elements together and define a section of content.

  • The <span> tag is used to group inline elements together.

  • The <section> tag is used to define sections of content within a webpage.

  • The <header> tag is used to define a header section within a webpage.

  • The <footer> tag is used to define a footer section within a webpage.

Asked in Cabin4j

2w ago
Q. How do you enable pagination using CSS3?
Ans.

Pagination using CSS3 can be achieved by using the 'display: flex' property along with 'flex-wrap' and 'justify-content' properties.

  • Use 'display: flex' property to create a flexible layout for pagination

  • Set 'flex-wrap: wrap' to allow the pagination items to wrap to the next line when there is not enough space

  • Use 'justify-content: center' to horizontally center the pagination items on the page

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4d ago

Q. What are the different hooks that you've used in React.js?

Ans.

Some common hooks used in React.js are useState, useEffect, useContext, and useRef.

  • useState - for managing state in functional components

  • useEffect - for handling side effects in functional components

  • useContext - for accessing context in functional components

  • useRef - for accessing DOM elements or values in functional components

Asked in NullClass

3d ago

Q. What is React? and difference between react and angular.

Ans.

React is a JavaScript library for building user interfaces.

  • React is a JavaScript library developed by Facebook.

  • React uses a virtual DOM for better performance.

  • React is component-based, making it easier to reuse code.

  • React is mainly used for building single-page applications.

  • Angular is a full-fledged framework for building web applications.

  • Angular uses two-way data binding, while React uses one-way data flow.

  • Angular has a steeper learning curve compared to React.

5d ago

Q. How would you gracefully handle API errors in an API application?

Ans.

Handling API errors gracefully involves structured responses, logging, and user-friendly messages.

  • Use HTTP status codes to indicate error types (e.g., 404 for not found, 500 for server error).

  • Implement try-catch blocks to handle exceptions and prevent application crashes.

  • Log errors with sufficient detail for debugging, including timestamps and error messages.

  • Return user-friendly error messages to the client, avoiding technical jargon.

  • Consider implementing a retry mechanism fo...read more

Asked in Labmentix

6d ago

Q. What is the optimal project structure for Next.js applications?

Ans.

An optimal Next.js project structure enhances organization, scalability, and maintainability of web applications.

  • 1. /pages: Contains all route components, e.g., index.js for the homepage.

  • 2. /components: Reusable UI components, e.g., Button.js, Header.js.

  • 3. /styles: Global and component-specific styles, e.g., globals.css, Button.module.css.

  • 4. /public: Static assets like images and fonts, e.g., logo.png.

  • 5. /lib: Utility functions and API calls, e.g., api.js for fetching data.

  • 6....read more

1w ago

Q. What is JavaScript and what are its uses in web development?

Ans.

JavaScript is a programming language commonly used in web development for adding interactivity and dynamic content to websites.

  • JavaScript is used for client-side scripting, allowing for interactive elements like forms, animations, and dynamic content.

  • It can also be used for server-side scripting with Node.js to build backend applications.

  • JavaScript frameworks like React, Angular, and Vue.js are popular for building dynamic and responsive web applications.

4d ago

Q. What programming languages are you most comfortable with?

Ans.

I'm most comfortable with JavaScript, Python, and PHP, leveraging them for both front-end and back-end development.

  • JavaScript: Proficient in frameworks like React and Vue.js for dynamic web applications.

  • Python: Experienced with Django and Flask for building robust back-end services.

  • PHP: Familiar with Laravel for creating scalable web applications.

Asked in StudyTable

1w ago

Q. What is your driving force to do this?

Ans.

My driving force is my passion for creating innovative and user-friendly web applications.

  • Passion for creating innovative and user-friendly web applications

  • Desire to constantly learn and improve my skills

  • Enjoyment of problem-solving and finding creative solutions

  • Satisfaction in seeing the end result and how it benefits users

  • Motivation to stay up-to-date with the latest technologies and trends

Asked in Clinistats

2w ago

Q. Is Core Java an object-oriented programming language?

Ans.

Core Java is an object-oriented programming language, emphasizing concepts like inheritance, encapsulation, and polymorphism.

  • Java supports four main OOP principles: encapsulation, inheritance, polymorphism, and abstraction.

  • Encapsulation: Java classes bundle data (attributes) and methods (functions) together, e.g., 'class Car { private String color; }'.

  • Inheritance: Java allows classes to inherit properties from other classes, e.g., 'class Sedan extends Car { }'.

  • Polymorphism: J...read more

2w ago

Q. How do you determine if a given string is a palindrome?

Ans.

To check if a string is palindrome, compare it with its reverse.

  • Remove all non-alphanumeric characters and convert to lowercase for accurate comparison.

  • Use two pointers, one at the start and one at the end, and compare the characters at each position.

  • If all characters match, the string is a palindrome.

  • Example: 'A man, a plan, a canal: Panama' is a palindrome.

1d ago

Q. Can you define the difference between == and === in Javascript?

Ans.

In JavaScript, '==' checks for value equality, while '===' checks for both value and type equality.

  • '==' performs type coercion, converting operands to the same type before comparison.

  • '===' does not perform type coercion; both value and type must match.

  • Example of '==': 0 == '0' returns true because '0' is coerced to a number.

  • Example of '===': 0 === '0' returns false because the types (number vs string) are different.

  • Using '===' is generally recommended to avoid unexpected resu...read more

2w ago

Q. What web technologies did you have past experience with?

Ans.

I have experience with HTML, CSS, JavaScript, and various frameworks like React and Node.js for building responsive web applications.

  • Proficient in HTML5 for structuring web content.

  • Experienced with CSS3 for styling and layout, including Flexbox and Grid.

  • Skilled in JavaScript for dynamic content and interactivity.

  • Worked with React for building user interfaces and managing state.

  • Utilized Node.js for server-side development and RESTful APIs.

  • Familiar with version control using Gi...read more

4d ago

Q. What frameworks are commonly used for web development?

Ans.

Web development frameworks streamline the process of building websites and applications, enhancing efficiency and functionality.

  • React.js - A JavaScript library for building user interfaces, particularly single-page applications.

  • Angular - A platform for building mobile and desktop web applications using TypeScript.

  • Vue.js - A progressive framework for building user interfaces, known for its simplicity and flexibility.

  • Django - A high-level Python web framework that encourages ra...read more

Q. Why is prior experience necessary for this role, considering many applicants are recent graduates?

Ans.

Experience enhances skills, problem-solving, and adaptability, making candidates more effective in real-world scenarios.

  • Experience allows for practical application of theoretical knowledge, such as using frameworks like React or Angular in real projects.

  • Familiarity with version control systems like Git helps in collaborative environments, which is crucial in team-based projects.

  • Real-world experience teaches how to troubleshoot and debug issues effectively, which is often not ...read more

1w ago

Q. What is the Entity Relation model?

Ans.

Entity Relation model is a conceptual representation of the data structure and relationships in a database.

  • It is used to design and visualize the database schema.

  • Entities represent real-world objects or concepts.

  • Relations define the associations between entities.

  • Attributes describe the properties or characteristics of entities.

  • Primary keys uniquely identify each entity in a relation.

  • Foreign keys establish relationships between entities.

  • ER diagrams are commonly used to represe...read more

Asked in Capgemini

1d ago

Q. Which technologies are currently used at Capgemini?

Ans.

Capgemini uses a variety of technologies depending on the project requirements.

  • Capgemini uses Java, .NET, Python, and other programming languages.

  • They also use various frameworks such as Angular, React, and Vue.js.

  • For database management, they use Oracle, MySQL, and MongoDB.

  • Capgemini also focuses on emerging technologies like AI, blockchain, and IoT.

  • The specific technology used depends on the project requirements and client needs.

Asked in Gamix Labs

1w ago

Q. Write a program to find the smallest element among right and left neighbors in an array.

Ans.

This program identifies the smallest element among an element's left and right neighbors in an array of strings.

  • Input Array: Consider an array of strings, e.g., ['apple', 'banana', 'cherry', 'date'].

  • Neighbor Comparison: For each element, compare it with its left and right neighbors (if they exist).

  • Smallest Element: Determine the smallest string based on lexicographical order among the neighbors.

  • Edge Cases: Handle edge cases where the element is at the start or end of the arra...read more

2w ago

Q. What is the Model-View-Controller (MVC) architectural pattern?

Ans.

MVC is a software architectural pattern that separates an application into three interconnected components: Model, View, and Controller.

  • Model: Represents the data and business logic (e.g., a database or data structure).

  • View: Displays the data (e.g., HTML/CSS in web applications).

  • Controller: Handles user input and updates the Model and View accordingly.

  • Example: In a web app, the Controller processes form submissions, the Model updates the database, and the View renders the upd...read more

1w ago

Q. What is the difference between external and internal CSS?

Ans.

External CSS is stored in separate files while internal CSS is included within the HTML file.

  • External CSS is linked to HTML using tag.

  • Internal CSS is defined within

2w ago

Q. What is Laravel and how do you use it to create PHP API CRUD applications?

Ans.

Laravel is a PHP framework that allows for easy creation of APIs with CRUD functionality.

  • Laravel is a popular PHP framework known for its elegant syntax and powerful features.

  • API stands for Application Programming Interface, which allows different software applications to communicate with each other.

  • CRUD stands for Create, Read, Update, Delete - the basic operations of a database.

  • Using Laravel, developers can easily create APIs that perform CRUD operations on a database.

Q. What is the role of a software developer in the healthcare department?

Ans.

Software developers enhance healthcare through technology, improving patient care, data management, and operational efficiency.

  • Development of Electronic Health Records (EHR) systems for better patient data management.

  • Creation of telemedicine platforms that allow remote consultations, improving access to care.

  • Implementation of health information systems that streamline hospital operations and reduce errors.

  • Design of mobile health applications that help patients manage their he...read more

1w ago

Q. What is the use of a constructor?

Ans.

Constructor is used to create and initialize an object of a class.

  • Constructor has the same name as the class.

  • It is called automatically when an object is created.

  • It can be used to set default values for object properties.

  • It can also take parameters to initialize object properties.

  • Example: class Person { constructor(name, age) { this.name = name; this.age = age; } }

  • Example: let person1 = new Person('John', 30);

Asked in Indegene

1w ago

Q. Explain how Cache works in Drupal

Ans.

Drupal Cache stores data in memory or disk to improve website performance.

  • Drupal Cache stores frequently used data in memory or disk to reduce database queries.

  • Cache can be configured to store data for a specific time or until it is manually cleared.

  • Drupal has several cache types like page cache, block cache, and dynamic page cache.

  • Cache can be cleared manually or automatically when content is updated.

  • Cache can be disabled for development purposes.

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