Daljyor Unemployed Engineers' Co Operative Society Front end Developer Interview Questions and Answers

Q1. What are your salary expectations?
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Q2. What is your family background?
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Q3. Share details of your previous job.
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Q4. Why should we hire you?
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Q5. Why are you looking for a change?
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Q6. Where do you see yourself in 5 years?
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Q7. What are your strengths and weaknesses?
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Q8. Tell me about yourself.
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Q9. Tell me about your questions
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Q1. Based on html,css Javascript
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Q2. Based on ReactJs
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Q3. Javascript promise method
Ans. 
JavaScript Promise is an object representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations such as fetching data from an API.

• They have three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() and .catch() methods.

• Promises can also be created using the Promise constructor.
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Q4. Javascript callback funtions
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Based on html, Css, Javascript and React-Js

What is frount end devloper roulr what are they?

Java script and sig tagsand out put creat page ?

How to slowe the error css and it will take 5to 7min pass the next person it will work or their is any errror?

Q1. How to comment in javascript
Ans. 
Comments in JavaScript are used to explain the code and are not executed by the browser.
• Use // for single line comments

• Use /* */ for multi-line comments

• Comments help other developers understand your code
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Q2. Write code of async-await
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Async-await is a feature in JavaScript that allows for asynchronous programming using promises.
• Use the 'async' keyword before a function to make it asynchronous

• Use the 'await' keyword inside an async function to wait for a promise to resolve

• Async-await simplifies asynchronous code and makes it easier to read and maintain
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Q1. What is mean by dom
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DOM stands for Document Object Model, which is a programming interface for web documents.
• DOM is a representation of the structure of a web page, allowing scripts to dynamically access and update the content, structure, and style of the document.

• It provides a way for scripts to interact with the web page by accessing and manipulating elements like text, images, forms, etc.

• DOM is platform and language-independent, allowi...read more
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Q2. Explain promise in typescript
Ans. 
Promises in TypeScript are objects representing the eventual completion or failure of an asynchronous operation.
• Promises are used to handle asynchronous operations in a more readable and manageable way.

• They can be in one of three states: pending, fulfilled, or rejected.

• Promises can be chained using .then() to handle success and .catch() to handle errors.

• Example: const myPromise = new Promise((resolve, reject) => { ...
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Q3. Explain hooks in javascript
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Hooks in JavaScript are functions that let you use state and other React features without writing a class.
• Hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• Custom hooks are functions that allow you to reuse
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Q4. Write a program 1 to 100 prime numbers
Ans. 
Generate an array of prime numbers from 1 to 100.
• Iterate from 1 to 100 and check if each number is prime

• A prime number is only divisible by 1 and itself

• Start with a list of prime numbers and check divisibility
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Q1. Angular core concepts, pipes, directives.
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Flatten array, subarray

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