LTIMindtree Front end Developer Interview Questions and Answers for Experienced

Q1. What is react js
Ans. 
React.js is a JavaScript library for building user interfaces.
• React.js is developed and maintained by Facebook.

• It allows developers to create reusable UI components.

• React uses a virtual DOM for efficient rendering.

• It follows a component-based architecture.

• React can be used for building single-page applications.
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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. What is react and it's advantage
Ans. 
React is a JavaScript library for building user interfaces.
• React allows for the creation of reusable UI components

• It uses a virtual DOM for efficient rendering

• React is declarative, making it easier to understand and debug code
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Q2. React life cycle
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Q3. Questions related to Redux
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Q4. Simple app using redux
Ans. 
Creating a simple app using Redux for state management in a front end application.
• Set up Redux store with reducers and actions

• Connect components to Redux store using mapStateToProps and mapDispatchToProps

• Dispatch actions to update state in Redux store

• Use combineReducers to manage multiple reducers
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Q1. Previous project
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Q2. Agile process followed in project
Ans. 
Agile process involves iterative development, frequent collaboration, and adaptability to changes.
• Daily stand-up meetings to discuss progress and roadblocks

• Sprints for focused development and testing

• Continuous feedback and iteration based on user input

• Use of tools like Jira or Trello for project management
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Q1. Salary discussion
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Q2. Work location discussion
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6o minutes test with 2 coding question of your preference

Q1. Reverse the string
Ans. 
Reverse a given string
• Use built-in methods like split(), reverse(), and join() to reverse the string

• Alternatively, loop through the string from end to start and build a new reversed string
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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
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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