real-world-javascript-interview-questions

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real-world-javascript-interview-questions

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JavaScript questions that were asked at real job interviews.

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- - script.js
- - favicon.ico
  - index.html
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  - script.js
- Change box colors.jpeg
_config.yml
README.md

// repository documentation

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At a web developer interview lately? What JavaScript questions were you asked?

Additional contextual information may include: 
- how much time applicant was given to solve the problem 
- whether or not applicant was allowed to use additional resources to solve the problem (i.e. Google) 
- job title
- type of interview

**This project was made possible by my [financial supporters via PayPal](https://www.paypal.me/toughcandy), including Chiquito. ⚡️ Thank you!**

# Real-world JavaScript interview questions.

***

- ### Write a function that takes a DOM element and smoothly animates it from its current position to distance pixels to the right over duration milliseconds. Implement the following function, `animate(el, milliseconds, distance)`
  * Asked as part of a phone screen interview for Facebook position
  * Implement this function without using jQuery or any other third-party libraries

_Discovered 18 December 2019 via [Dev.to](https://dev.to/coderbyte/a-javascript-interview-question-asked-at-facebook-27po)_

- ### Please output the optimal HTML, CSS and JS to render [these boxes](https://github.com/RealToughCandy/real-world-javascript-interview-questions/blob/master/images/Change%20box%20colors.jpeg) where clicking on a box changes the color of the box to red.

_Submitted 14 November 2019 via [Twitter](https://twitter.com/sametmutevelli/status/1195040695951605760) by Samet M._

- ### Complete the [Olympic Challenge](https://github.com/RealToughCandy/olympic-challenge).
 
_Submitted 12 November 2019 via [YouTube](https://www.youtube.com/watch?v=k42uxd7WmfQ) by RunOS._

- ### Build a todo list with no JavaScript framework. ([ex. solution by @xtrp](example_solutions/Todolist_No_JS_Framework/))
  * Applicant had 1 hour to solve 
  * Could access the web for help

_Submitted 12 November 2019 via GitHub by [miladganjali](https://github.com/miladganjali)._

- ### Explain object-oriented programming.

_Submitted 12 November 2019 via GitHub by [IlyasEzz](https://github.com/ilyasEzz)._

- ### How to add timestamps in all the console.logs without modifying console logs manually.

_Submitted 9 November 2019 via GitHub by [tnvr-bhatia](https://github.com/tnvr-bhatia)_

- ### Complete the [Insubuy Code Challenge](https://github.com/IB-IT/Insubuy-Code-Challenge)
  * 48-hour time limit
  * Applicant asked for additional day to complete challenge and was granted extension

_Submitted 8 November 2019 via RTC email by Edward W._
 
- ### Build a traffic light (semaphore). A black rectangle with 3 circles (lights: red, yellow, green) on it. There can only be one light on at a time. When I click on it, one light turns ON and the others turn OFF. ([ex. solution by @xtrp](example_solutions/Interactive_Traffic_Light/))
 * 20 minute time limit
 * Applicants can use whatever dependencies they want
 * Could access the web for help

_Submitted 8 November 2019 via [RTC Discord](https://discord.gg/68yMWzV) by Jordan W._

- ### How does garbage collection work in JavaScript?

_Submitted 8 November 2019 via [RTC Twitter](https://twitter.com/realtoughcandy/status/1192558596858490889) by Half Maltese Falcon_

- ### Explain event bubbling.

_Submitted 8 November 2019 via [RTC Twitter](https://twitter.com/realtoughcandy/status/1192558596858490889) by Chris M._

- ### How to sort an array. ([ex. solution by @xtrp](example_solutions/Sort_Array/))

_Submitted 7 November 2019 via [RTC Twitter](https://twitter.com/realtoughcandy/status/1192558596858490889) by Christopher D._

- ### How to show an alert box after a mouse click? ([ex. solution by @xtrp](example_solutions/Show_Alert_Box_After_Mouse_Click/))

_Submitted 7 November 2019 via [RTC Twitter](https://twitter.com/realtoughcandy/status/1192558596858490889) by Leondri S._

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