Top 10 Javascript Interview Questions and Answers

Bullet proof your Javascript knowledge before an interviewIn one hour I can teach you enough javascript to dramatically improve your chances of getting past that first interview.

If you are like me you learnt Javascript by just muddling along, seeing what works and learning a thing or two everyday.

However without a grasp of the fundamentals you will hit quite a few head scratch-y issues, introduce bugs, find it hard to read and understand framework and library code, won’t be considered a senior developer or just a knowledgable character in this space.

It also won’t help you when you want to make the leap and change jobs, maybe you want to earn more money, or just work on something new, or get away from that mean boss, or perhaps you just want to be in a better bargaining position when promotion time comes around this year.

That’s when your knowledge of javascript is going be tested, you are going to be prodded, poked and the weaknesses in your javascript-fu will be found.

Now even for a seasoned javascript developer that’s scary, i mean you can’t know everything right? Or maybe you just have a bad day and blank out in the interview?
I know, i’ve interviewed hundreds of candidates for a number of small to large companies in the past - its one of the reasons companies hire me (only top devs can recognise other top devs).

It always frustrates me when i have to say no to candidates who otherwise sound like a perfect fit because they failed to have a basic understanding of javascript fundamentals.

Whats frustrating is that the knowledge doesn’t take long to learn, honestly to get enough javascript knowledge to beat my stage one technical interview would take you about 1 hour to learn. That’s it… 1 hour!

But time and time again candidates are failing these basic questions.

So seeing i’m an online educator I decided to create this course.

In one hour I can teach you enough javascript to dramatically improve your chances of getting past that first interview.

I’m not guaranteeing it, logically that makes no sense… getting a job depends on a number of factors but I do 100% believe that if you take this course, watch the videos, complete the quizzes then you will have a better chance of making it to your dream job.

• More money.
• More interesting work.
• Better work life balance?

This course will help you to achieve those goals!

What are the requirements?

• A basic understanding of Javascript (ES5)

What am I going to get from this course?

• Over 12 lectures and 1 hour of content!
• Impress interviewers with knowledge about fundamental javascript features
• Confidently Interview other Javascript candidates
• Pass stage one javascript telephone interviews

What is the target audience?

• Any javascript developer looking to change jobs and isn't looking forward to the interviews
• Devs who have not done javascript in a while, are a bit rusty, and just want to freshen up on the essentials.
• Both experienced and novice developers
• Just about to enter the job market after a career change
• New grads coming out of university

Curriculum
Section 1: Introduction
Lecture 1 Introduction & getting the best out of this course 02:59
Section 2: Questions
Lecture 2 What is "use strict" and what does it do? 09:49
Lecture 3 Does javascript pass variables by reference or by value? 04:58
Lecture 4 What are the different types in javascript? 09:27
Lecture 5 What is the difference between == and ===? 06:37
Lecture 6 What is NaN and how can we check for it? 05:25
Quiz 1 Mid Point Quizz 5 questions
Lecture 7 What are the different scopes in javascript? 03:56
Lecture 8 What is variable hoisting? 04:41
Lecture 9 What is the scope chain? 04:08
Lecture 10 What is an IIFE and why might you use it? 06:02
Lecture 11 What are function closures? 12:09
Lecture 12 Quick Question 02:06
Quiz 2 Interview Quiz 10 questions







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