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Q1. What is use of constructors in Js
Ans. 
Constructors in JavaScript are used to create and initialize objects.
• Constructors are functions that are used to create new instances of objects.

• They are called with the 'new' keyword to create a new object based on the constructor's blueprint.

• They can also be used to set initial values or properties for the object being created.

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

• Example: var perso
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The first round of the coding test in JavaScript was conducted through karat.io.

During the browser coding round, the interviewer asked to build a component using ReactJS. This exercise was designed to assess your fundamental understanding of HTML, CSS, and React state management.

The third round was conducted to evaluate your JavaScript skills. The interviewer presented a code block and requested you to retrieve and handle the data. This round aimed to assess your understanding of API fetching and promise concepts.

The fourth round was the System Design Round, during which I was tasked with designing a JIRA ticketing system.

Q1. What is closures
Ans. 
Closures are functions that have access to variables from their outer scope even after the outer function has finished executing.
• Closures allow functions to access variables from their parent function even after the parent function has returned.

• They help in creating private variables and functions in JavaScript.

• Closures are commonly used in event handlers and callbacks.
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Q2. What is call apply bind
Ans. 
call, apply, and bind are methods in JavaScript used to manipulate the context of a function.
• call() is used to invoke a function with a specified 'this' value and arguments provided individually.

• apply() is similar to call() but arguments are passed as an array.

• bind() is used to create a new function with a specified 'this' value and initial arguments.
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Q1. What is javascript?
Ans. 
JavaScript is a high-level, interpreted programming language that is used to make web pages interactive and dynamic.
• JavaScript is commonly used for client-side web development.

• It can be used to create interactive features like forms, animations, and dynamic content.

• JavaScript can also be used for server-side development with Node.js.
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Q2. Types of variable in JavaScript
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Types of variables in JavaScript include var, let, and const.
• var: globally scoped or function scoped

• let: block scoped, can be reassigned

• const: block scoped, cannot be reassigned
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Q1. Implement a calculator class which does this cal.add(2).sub(3).mul(4).delay(2000).add(4) etc
Ans. 
Implement a calculator class with chaining methods and delay function.
• Create a Calculator class with add, sub, mul methods that return the instance of the class.

• Implement a delay method that uses setTimeout and returns the instance of the class.

• Use a queue to store the operations and execute them in order after the delay.

• Return the result of the operations when the equals method is called.
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Q2. Problems on Array and bit manipulation. Questions on setTimeout() and bind functions. Polyfill for Promise function currying add(1)(2)(3)(4) etc
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Q1. Given a nested checkboxes like parents > children > childre etc write javascript code such that on click of any checkbox all its children should get updated to same value as that parent.
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Basics 20 mcq questions from speed,time and distance etc.. followed by tech mcq and coding

General topics and trending topics.Use new words

Q1. About project and fully resume based question
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