FDL-interview-questions.md

OOP

• How comfortable are you with Object Oriented concepts and how they apply to any given language? (elaborate on OOP)
• Can you explain inheritance and as it relates to extending classes or objects?
• How about the concept of composition vs inheritance?
• Can you explain the difference between Classical and Prototypal inheritance?
• Are you familiar with Software Design Patterns?
• Can you explain MVC?
• Are there any other patterns you are familiar with and can you explain a use case?

General Code

• What is the most difficult problem you've solved with code? (explain)
• What IDEs do you currently use?
• Can you explain the difference between synchronous and asynchronous programming? (Bonus) Explain threading?
• Can you explain how a recursive function/method works?
• Can you explain how HTTP Requests are handled?
• Can you explain the difference between a private property and a static public property?
• Can you explain the benefits/drawbacks of a strongly typed language vs an untyped language?
• What other languages are you familiar with?

TDD

• Can you explain TDD and your experience with it?
• Any experience with BDD?
• What frameworks or toolkits have you used in your projects?

ActionScript

• Can you explain the difference between an Object, Array, and Vector?
• Can you explain the usage of the Drawing API used in ActionScript?
• Can you explain the difference between a for and a for...in loop?
• Do you have any experience developing AIR applications? (explain)
• Do you have any experience using the Flex SDK for compiling flex/as3/air?
• Do you have experience interfacing ActionScript with JavaScript?
• Can you explain how to use gradient masking, and any pitfalls with doing so?
• Have you used the native 3d features in FP10, and how do you feel about them?
• What tween engines have you used or how do you go about scripting motion? (timeline animation experience?)
• What frameworks or toolkits have you used in your projects?
• Which one do you prefer and why?

JavaScript

• Can you explain the keyword prototype and its use and effect in JavaScript?
• Can you explain the concept of namespaces and how they are used in JavaScript?
• Can you explain Closures and use a case for them?
• Can you explain what currying means? (Bonus)
• What frameworks or toolkits have you used in your projects?
• Which one do you prefer and why?

HTML

• What is the W3C?
• What is the DOM?
• Can you explain the concept of degrading a site gracefully and why you might have to do it?
• Can you explain the Canvas object in HTML5 and its use?
• Have you had any experience with HAML?

CSS

• Explain the difference between class and id?
• Can you explain absolute vs. relative positioning and how they work together?
• Can you explain the difference between margin and padding?
• How would you vertically center a web site?
• Can you explain how CSS selectors work? Bonus: In which direction are they read by the browser?
• Have you had any experience with SASS?

Objective C

• Have you had any experience developing iPhone applications?
• Can you explain memory management?
• What will get your app rejected by the app store?
• What are the advantages/disadvantages of NSMutableArray versus C arrays?
• Can you explain the difference between UIKit, CoreGraphics and OpenGL?
• Tell us about a gotcha you've encountered on iPhone
• If UIViewController is a bear, and UITableView is a flamingo, which animal is NSNumber?

Rails

• What is has_many :through ond how does it work?
• What is a named scope?
• How does a respond-to block work and when would you use it?
• Explain how Rails plugins are loaded into an application?
• What does REST mean ond what does it mean for a Rails application?

Ruby

• Explain the difference between a string and a symbol
• Explain the scope of a block in Ruby
• Explain the difference between the key words 'include' and 'extend'
• Explain what a module is and how it differs from a class
• What does "self" refer to?
• What is a proc and how does it differ from a lambda?
• Ruby takes a unique approach to the problem of multiple inheritance. Explain Ruby's approach and the strengths and weaknesses of it.
• Do you think adding behavior to the built-in core Ruby/Rails classes is a good idea? Can you give some examples to back up your opinion?

Databases

• What is a database index and how does it work?
• Can you explain the difference between an inner join, a right outer join, and a left outer join?
• Can you explain database normalization?

Miscellaneous Code

• What does REST mean and can you explain the concept?
• Can you explain what the CDATA tag does to XML and how it is parsed?
• Can you explain XML namespaces, and how they effect parsing?
• What version control systems are you familiar with?
• Have you used any automated deployment systems (like capistrano, vlad or inploy)?
• Have you used memcached?
• What is your biggest project/deployment (production application)?

Community

• Have you contributed to any open source projects?
• Do you code for fun? Any personal projects you want to discuss?
• Have you attended any conferences in the last few years?
• What's the last programming book you've read?

Design

• Can you explain the difference between kerning and leading?
• Can you explain the difference between bitmap and vector graphics?
• Can you tell us when you should use a jpg, gif or png? What are some of the differences?
• Have you worked with designers/creative directors before? explain?
• How realistic is it to create a site that looks exactly like a design comp, down to the pixel?