JS interview questions

Repo with notes from/for interviews for js-developer positions.

• Passing by value/reference
• Closures
• Flow
• Hoisting and types
• Inheritance and context
• Complex
• Quirks
• WTF
• Greate list of framework specific (not only js) questions
• Unlocking the JavaScript Code Interview (an Interviewer Perspective)

Here I've noted only questions from my interviews.

If you want to get more information/materials check next repos:

• https://github.com/h5bp/Front-end-Developer-Interview-Questions -- not only about js
• https://github.com/nishant8BITS/123-Essential-JavaScript-Interview-Question
• https://github.com/kolodny/exercises Some basic javascript coding challenges and interview questions
• https://github.com/malachaifrazier/JavaScript-Interview-Questions Common Questions that may be Asked on a Job Interview
• https://github.com/adam-s/js-interview-review What Do I Need to Know to Ace a JavaScript Interview?
• https://github.com/mi-lee/js-interview-questions/blob/master/interview-questions.md
• https://github.com/nathansmith/javascript-quiz
• https://github.com/ChiperSoft/InterviewThis An open source list of developer questions to ask prospective employers
• https://github.com/MaximAbramchuck/awesome-interview-questions Awesome Interviews ( multiple langs )
• https://github.com/apoterenko/javascript-interview-questions ( about 50 questions like "Explain ouput.."
• https://github.com/kensterz/interview-questions-in-javascript Interview Algorithm Questions in Javascript
• https://github.com/HIROSN/coding-interviews-es6 Coding Interview Questions (ECMAScript 2015)
• https://github.com/mkshen/code-problems-solutions Interview coding questions and answers in Javascript - ES6
• https://github.com/khan4019/front-end-Interview-Questions Interview Questions for front-end-Developer ( Only for JS developer when they have to answer some side questions to make interviewer comfortable. ) by That JsDude
• https://medium.com/javascript-scene/10-interview-questions-every-javascript-developer-should-know-6fa6bdf5ad95#.i5mgmc4m0 10 Interview Questions Every JavaScript Developer Should Know AKA: The Keys to JavaScript Mastery
• https://github.com/yangshun/tech-interview-handbook/blob/master/front-end/interview-questions.md - Front-end Job Interview Questions (and Answers - that might be most interesting for lazy persons who just want to know keys for interview )
• https://github.com/wwwebman/front-end-interview-questions Our front end interview questions and answers can help you to prepare for an interview better and faster
• https://github.com/kennymkchan/interview-questions-in-javascript A mostly reasonable collection of technical software development interview questions solved in Javascript
• https://github.com/fejes713/30-seconds-of-interviews A curated collection of common interview questions to help you prepare for your next interview.
• https://github.com/rakesh-sankar/awesome-interview-question A curated list of interview questions of various domain.
• https://github.com/ajzawawi/js-interview-prep A collection of JS interview questions ~~updated every day~~
• https://github.com/monkey3310/full-stack-interview Full Stack Interview Questions & Answers (inc. js-stack)
• https://github.com/sudheerj/reactjs-interview-questions List of top 222 ReactJS Interview Questions & Answers
• https://github.com/Pau1fitz/react-interview List of common React interview questions.
• https://github.com/ElemeFE/node-interview How to pass the Node.js interview of ElemeFE
• https://www.adaface.com/blog/react-interview-questions/ 100+ React Interview Questions (2020)

More specific questions:

• Top 50 React Interview Questions You Must Prepare In 2019
• 5 Essential React.js Interview Questions
• (one more time ) Awesome Interviews - not only languages, but libraries/frameworks too
• JS Interview Algorithm beginner / intermediate
• 13 Essential React.js Interview Questions
• React Interview Questions and Answers

Also it may be helpful to check next books:

• "Javascript Technical Interview Questions" by Xuanyi Chew https://leanpub.com/jsinterviewquestions
• "Quick JavaScript Interview Questions" by Sandeep Kumar Patel https://leanpub.com/quickjavascriptinterviewquestions
• "JavaScript Interview Questions: Who Else Wants to Nail that Interview?" by Volkan Özçelik https://o2js.com/assets/javascript-interview-questions.pdf
• https://www.frontendhandbook.com/practice/interview-q.html The part about interview at Front-End Developer Handbook
• http://www.w3resource.com/javascript-exercises/ JavaScript Exercises, Practice, Solution ( starter level, suppose. Most questions is about knowledge of basic API / lang construction )
• https://www.interviewcake.com/javascript-interview-questions ( JavaScript Interview Questions, like "Merging Meeting Times", "Two Egg Problem" -- the exersizes/questions can be solved no only via js - they are more algorithmic and give you mental pabulum ). Both - tasks/solutions are pretty cool
• https://github.com/yangshun/tech-interview-handbook Tech Interview Handbook (Algorithms, front end and behavioral content for rocking your coding interview)

Some ideas can be found during online tests. Like next:

• https://tests4geeks.com/category/javascript
• http://perfectionkills.com/javascript-quiz-es6/ ( also check explains at https://gist.github.com/DmitrySoshnikov/3928607cb8fdba42e712 )
• http://dmitry.baranovskiy.com/post/91403200 - So, you think you know JavaScript? it's usefull to read https://www.nczonline.net/blog/2010/01/26/answering-baranovskiys-javascript-quiz/ )
• http://perfectionkills.com/javascript-quiz/
• https://www.adaface.com/assessment-test/javascript-online-test

You can get more practice in interview questions at:

• https://codesignal.com/interview-practice
• https://www.pramp.com
• https://interviewbuddy.in
• http://www.gainlo.co

If you're ready to share your experience - you're welcome. Make PR to related file ( by topic ) or create issue with list of questions

P.S. it worth to check 'Cracking the Coding Interview' by Gayle Laakmann McDowell ( solutions can be founded at https://github.com/careercup/CtCI-6th-Edition , book (at least 5th edition can be googled )