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What are the interview questions asked in JavaScript?

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What are the interview questions asked in JavaScript?

Basic js interview questions:

  • What are the different data types present in javascript?
  • Explain Hoisting in javascript.
  • Difference between “==” and “===” operators.
  • Explain Implicit Type Coercion in javascript.
  • Is javascript a statically typed or a dynamically typed language?
  • What is NaN property in JavaScript?

Is JavaScript good for interview?

Doing an interview in JavaScript offers you 2 main advantages: The syntax is simple, intuitive, and easy to grasp — rather than spending the time remembering how to declare an array, you can spend more time thinking about the logic for your solution.

What should I know before coding interview?

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Coding Interview Preparation

  • Prepare a 30-second to 1-minute elevator pitch for the “tell me about yourself” question.
  • Before you go, study up on the most important CS fundamentals.
  • Pick one programming language and know it really well.
  • Do regular coding challenges/smart practice.
  • Understand tech fundamentals.

How should I prepare for a beginner interview?

4 Tips for Preparing for a Coding Interview

  1. Build the hard skills. Get in the habit of regularly doing code challenges.
  2. Don’t forget the soft skills.
  3. Acknowledge multiple solutions.
  4. Study your algorithms and data structures.

What would be the result of 3 2 7 in JavaScript?

What would be the result of 3+2+”7″? Since 3 and 2 are integers, they will be added numerically. And since 7 is a string, its concatenation will be done. So the result would be 57.

What is the best language for coding interviews?

C is positioned at #1 with 13.83\% ratings, followed by Python, Java, and C++. C, Python, and Java make for a good combination of languages to build a solid coding foundation.

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Why are tech interviews so hard?

Technical interviews at FAANG companies are designed to be extremely hard because the cost of hiring a lousy engineer is significantly higher than the cost of rejecting an excellent one. Hence, organizations are incentivized to set a high bar.

Can you look things up during coding interviews?

Yes, of course you can, but if you have to do that more than once, or for more than just remembering the arguments to a function, it will take you too long and you will fail the interview. If you simply paste a solution into the code window, that will be obvious too, and again you’ll fail the interview.

How do you nail an interview code?

Here are five key tips to nailing the interview:

  1. Know the company and the interviewer.
  2. Give a good first impression.
  3. Understand basic body language cues.
  4. Talk about your project.
  5. Always prepare for a coding challenge.
  6. Conclusion.

What is array in JavaScript?

In JavaScript, an array is an ordered list of values. Each value is called an element specified by an index. First, an array can hold values of different types. For example, you can have an array that stores the number and string, and boolean values. Second, the length of an array is dynamically sized and auto-growing.

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