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faqguru's Introduction

What is this?

A collection of super-popular Interview questions, along with answers, and some code-snippets that will help you to prepare for technical interviews. Many of these questions are real questions from real interviews. It is by no means comprehensive, and the answers are relatively short ( and for each of the concepts, there are probably better and/or more in depth coverage in the web), but this repo like reference tool, that helps you to prepare for technical interview.

Note: Keep in mind that many of these questions are open-ended and could lead to interesting discussions that tell you more about the person's capabilities than a straight answer would.

Table of Contents

Topics

  1. JavaScript
  2. React
  3. Redux
  4. Vue.js
  5. Angular
  6. Node.js
  7. AngularJS
  8. Bootstrap
  9. CSS
  10. HTML5
  11. Sass
  12. Webpack
  13. MongoDB
  14. SQL
  15. GraphQL
  16. C#
  17. Golang
  18. Java
  19. ASP.NET
  20. ASP.NET MVC
  21. .NET Framework
  22. Ruby
  23. Ruby On Rails
  24. TypeScript
  25. AWS
  26. Azure
  27. Git
  28. Code Problems
  29. Data Structures
  30. Design Patterns
  31. Agile
  32. PHP
  33. Android
  34. Swift
  35. DevOps
  36. REST API
  37. Software Architecture
  38. Web Security
  39. Performance Testing
  40. UX Design
  41. Scrum

Translations

Future

Creating new Translations

See Creating new translations

Authors

License

All projects and packages in this repository are MIT licensed.

faqguru's People

Contributors

denzelpenzel avatar greggubarev avatar joy-yu avatar kyunghokim29 avatar magyari44 avatar piowit avatar sergeytkachenko-cj avatar sergushka avatar uliaaan avatar zachvalenta avatar

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faqguru's Issues

No PHP?

I get that it's not in vogue as of late, but it's still a fairly in-demand language with a lot of competitive features as of v7.X+

Is this merely a lack of PHP-centric contributions on this repo or are peeps genuinely not interested in working with the language anymore?

lucky sevens variant: consider the sum even if last & first numbers add up to 7

There is other variant as mentioned here: https://prepwork.appacademy.io/coding-test-1/practice-coding-exercise/ which mention to consider the sum of last & first numbers add up to 7.

lucky_sevens?
Write a function lucky_sevens?(numbers), which takes in an array of integers and returns true if any three consecutive elements sum to 7.

lucky_sevens?([2,1,5,1,0]) == true # => 1 + 5 + 1 == 7
lucky_sevens?([0,-2,1,8]) == true # => -2 + 1 + 8 == 7
lucky_sevens?([7,7,7,7]) == false
lucky_sevens?([3,4,3,4]) == false

Make sure your code correctly checks for edge cases (i.e. the first and last elements of the array).

One probable solution could be (in JS):

function lucky_sevens(nums) {
  var len = nums.length;
  for (var i = 0 ;i < len; i++) {
    if (nums[i] + (nums[i+1] || nums[i+1-len]) + (nums[i+2] || nums[i+2-len]) === 7) {
      return true;
    }
  }
  return false;
}

o/p:

console.log(lucky_sevens([2,1,5,1,0])); --> true
console.log(lucky_sevens([0,-2,1,8])); --> true
console.log(lucky_sevens([-1,-2,1,8])); --> true
console.log(lucky_sevens([-1,-2,1,10])); --> true
console.log(lucky_sevens([-1,2,-2,10])); --> true

console.log(lucky_sevens([7,7,7,7])); --> false
console.log(lucky_sevens([3,4,3,4])); --> false

Add Python please

It would be great if you added questions related to Python in the list. Thank you for your work!

Suggestion to translate into russian

Почему на русском не сделали сразу как вторую ветку, скажем? Было бы замечательно чтобы и другие разработчики, кто не понимает или плохо понимает на английском смогли работать с этими вопросами.

Why didn't you do it in Russian right away as a second branch, let's say? It would be great if other developers who do not understand or understand English poorly could work with these questions.

Asking about javascript.md file

Hi,
what does the seventeenth point of the JavaScript lineup refer to? It reports "Write a function that would allow you to do this." and I don't understand if you refer to the previous point or not.
Thanks

Feedback (for React questions)

Hey 👋🏽

This looks like a good resource for interview questions—I haven’t had a chance to go through all of them.

I’m primarily a front-end developer, so I jumped straight to the React interview questions, and was quite surprised to see that most of the questions seem to be wrongly mislabelled. For example, this question:

What's an alternative way to avoid having to bind to this in event callback methods? (Senior)

... is definitely not a senior React-developer question. I’ve been asked this question several times before (for intern positions), and I’m no senior developer 😆

Same goes for this, this, this question—there’s actually quite a few, the more I look into it.

Another thing: for this question—and a few others, you should probably just delete them, or point straight to a resource that answers them in detail. Simply saying “Use arrow functions in your event handlers.” isn’t enough. In fact, in most cases, the next question interviewers ask is “what’s the downside of using the method you just mentioned”? You should also talk about the performance issues with passing an arrow function as a callback to the event handlers. I’m bringing this up because the next resource you point to also fails to bring that up 😅

Thanks for working on this resource! 💖

Adding the translation into Portuguese

Hello @denisschmidt and @uliaaan!
I'm from Brazil and I'd like to translate this documentation for you. I'll follow instructions written here and for the translation I'll follow your topics lineup. Thanks.

Russian translation

I would like to help with the translation into Russian. I'm a moderator @freeCodeCamp, including the moderator of the Russian section, and yes - i am native russian speaker

Italian translation

Hello @denisschmidt and @uliaaan!
I'm from Italy and I'd like to translate this documentation for you. I'll follow instructions written here and for the translation I'll follow your topics lineup.
Thanks.

Spanish Translation

Hello @denisschmidt and @uliaaan!
I'm Software Developer and I'm from Spain 🇪🇸 and I'd like to translate this repository (I think is very useful). Also, I'll learn while I'm translating, we both win! I consider the rules in the CONTRIBUTING Offical Document.

Merry Christmas and Happy New Year.

Add Docker, please

Great job! It would be great if you added questions about Docker. Thank you very much!

Operating system [request]

hi,
It would be really helpful if you added operating system questions as well. Big tech companies seems to focus on them.

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