Convin Front end Developer Interview Questions and Answers

Round duration - 360 minutes
Round difficulty - Medium

Basically TCS conduct its flagship event named as CODEVITA . And it offers Internship to prefinal (3rd )year students .

Q1. 
Allocate Books Problem Statement
Given an array of integers arr, where arr[i] represents the number of pages in the i-th book, and an integer m representing the number of students, allocate all the books ...read more
Ans. 
Allocate books to students in a way that minimizes the maximum number of pages assigned to a student.
• Iterate through possible allocations and calculate the maximum pages assigned to a student.

• Find the minimum of these maximums to get the optimal allocation.

• Return the minimum pages allocated in each test case, or -1 if not possible.
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Q1. Nested reddit comments
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Q2. Cors handling and proxies
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Hackerrank, html, javascript, css

Q1. CSS Box-model definition
Ans. 
CSS Box-model defines how elements are rendered in a webpage, including padding, border, and margin.
• Box-model consists of content, padding, border, and margin

• Content area is where text or images are displayed

• Padding is the space between content and border

• Border is the line around the content and padding

• Margin is the space outside the border
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Q2. Difference b/n flexbox and grid
Ans. 
Flexbox is for one-dimensional layouts, grid is for two-dimensional layouts.
• Flexbox is best for arranging items in a single row or column.

• Grid is best for creating complex layouts with rows and columns.

• Flexbox is more suitable for smaller scale layouts, while grid is better for larger scale layouts.

• Flexbox is more flexible in terms of item order and sizing, while grid provides more control over the overall layout.

• Both
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Q1. Basic questions on JavaScript, React and HTML/CSS.
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Q2. Hoisting, Closures, Event Loop, Promises, Async/Await
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Q3. Semantic elements, block and inline elements, meta tag CSS box model, ways of adding CSS, CSS pre-processors
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Q4. React questions on component lifecycle, different hooks and thier use, fetching data and displaying it in a list.
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Q1. What is AOT And JIT How angular different from react Route guard
Ans. 
AOT (Ahead-of-Time) and JIT (Just-in-Time) are compilation techniques used in Angular. Angular and React differ in their architecture and data binding approach. Route guards in Angular are used to control access to routes.
• AOT compilation in Angular converts TypeScript code into efficient JavaScript code during the build process, resulting in faster rendering and smaller bundle sizes.

• JIT compilation in Angular compiles ...read more
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Q2. How angular application build
Ans. 
Angular applications are built using the Angular CLI, which provides a command-line interface for creating, building, and serving Angular projects.
• Angular applications are built using the Angular CLI (Command Line Interface)

• The Angular CLI provides commands for creating new projects, generating components, services, modules, etc.

• To build an Angular application, you can use the 'ng build' command which compiles the appl
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Q3. Project discussion
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Aptitude test is best for first round.

Second round is best for coding test.

Q1. Self introduction and technical information about front end developer.
Ans. I say properly and uniqly for about my introduction.
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Q2. As a you are fresher or experience
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Q3. Reason for IT field.
Ans. 
IT field offers endless opportunities for innovation and growth.
• IT is a constantly evolving field with new technologies and trends emerging regularly.

• IT provides opportunities to work on exciting projects and solve complex problems.

• IT offers a wide range of career paths, from development to design to project management.

• IT is a field that is in high demand, with many job opportunities and competitive salaries.

• IT has the...read more
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Q1. About front end developer likes html and css.
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Q2. About html and css and java script
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Study about front end developer

Q1. Sementic html and display properties in css
Ans. 
Semantic HTML focuses on the meaning and structure of content, while display properties in CSS control how elements are visually displayed on a webpage.
• Semantic HTML uses tags that convey the meaning of the content, such as <header>, <nav>, <article>, <section>, <footer>.

• Display properties in CSS include properties like display: block, display: inline, display: inline-block, display: flex,...read more
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Q2. Hoisting in Javascript and different array methods
Ans. 
Hoisting is a mechanism in JS where variables and functions are moved to the top of their scope. Array methods are built-in functions to manipulate arrays.
• Hoisting applies to variable and function declarations

• Variables declared with let and const are not hoisted

• Array methods include push(), pop(), shift(), unshift(), splice(), slice(), forEach(), map(), filter(), reduce()

• push() adds an element to the end of an array

• pop...read more
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