Happiest Minds Technologies Front end Developer Interview Questions and Answers

Q1. React js Basic Question
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Q2. Coding Question Giving API to call and show in UI
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Q1. CSS Box-model definition
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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
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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
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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.
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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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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
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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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