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Linkify JS questions
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**[JS Questions](#js-questions)**

* Explain event delegation
* Explain how this works in JavaScript
* Explain how prototypal inheritance works
* What do you think of AMD vs CommonJS?
* Explain why the following doesn't work as an IIFE: function foo(){ }();. What needs to be changed to properly make it an IIFE?
* What's the difference between a variable that is: `null`, `undefined` or undeclared? How would you go about checking for any of these states?
* What is a closure, and how/why would you use one?
* Can you describe the main difference between a `forEach` loop and a `.map()` loop and why you would pick one versus the other?
* What's a typical use case for anonymous functions?
* How do you organize your code? (module pattern, classical inheritance?)
* What's the difference between host objects and native objects?
* Difference between: function `Person(){}`, `var person = Person()`, and `var person = new Person()`?
* What's the difference between `.call` and `.apply`?
* Explain `Function.prototype.bind`.
* When would you use `document.write()`?
* What's the difference between feature detection, feature inference, and using the UA string?
* Explain Ajax in as much detail as possible.
* What are the advantages and disadvantages of using Ajax?
* Explain how JSONP works (and how it's not really Ajax).
* Have you ever used JavaScript templating? If so, what libraries have you used?
* Explain "hoisting".
* Describe event bubbling.
* What's the difference between an "attribute" and a "property"?
* Why is extending built-in JavaScript objects not a good idea?
* Difference between document load event and document DOMContentLoaded event?
* What is the difference between `==` and `===`?
* Explain the same-origin policy with regards to JavaScript.
* Make this work: `duplicate([1,2,3,4,5]); // [1,2,3,4,5,1,2,3,4,5]`
* Why is it called a Ternary expression, what does the word "Ternary" indicate?
* What is "use strict";? what are the advantages and disadvantages to using it?
* Create a for loop that iterates up to 100 while outputting "fizz" at multiples of 3, "buzz" at multiples of 5 and "fizzbuzz" at multiples of 3 and 5
* Why is it, in general, a good idea to leave the global scope of a website as-is and never touch it?
* Why would you use something like the `load` event? Does this event have disadvantages? Do you know any alternatives, and why would you use those?
* Explain what a single page app is and how to make one SEO-friendly.
* What is the extent of your experience with Promises and/or their polyfills?
* What are the pros and cons of using Promises instead of callbacks?
* What are some of the advantages/disadvantages of writing JavaScript code in a language that compiles to JavaScript?
* What tools and techniques do you use debugging JavaScript code?
* What language constructions do you use for iterating over object properties and array items?
* Explain the difference between mutable and immutable objects.
* Explain the difference between synchronous and asynchronous functions.
* What is event loop? What is the difference between call stack and task queue?
* Explain the differences on the usage of `foo` between `function foo() {}` and `var foo = function() {}`
* What are the differences between variables created using `let`, `var` or `const`?
* What are the differences between ES6 class and ES5 function constructors?
* [Explain event delegation](#explain-event-delegation)
* [Explain how this works in JavaScript](#explain-how-this-works-in-javascript)
* [Explain how prototypal inheritance works](#explain-how-prototypal-inheritance-works)
* [What do you think of AMD vs CommonJS?](#what-do-you-think-of-amd-vs-commonjs)
* [Explain why the following doesn't work as an IIFE: function foo(){ }();. What needs to be changed to properly make it an IIFE?](#explain-why-the-following-doesnt-work-as-an-iife-function-foo--what-needs-to-be-changed-to-properly-make-it-an-iife)
* [What's the difference between a variable that is: `null`, `undefined` or undeclared? How would you go about checking for any of these states?](#whats-the-difference-between-a-variable-that-is-null-undefined-or-undeclared-how-would-you-go-about-checking-for-any-of-these-states)
* [What is a closure, and how/why would you use one?](#what-is-a-closure-and-howwhy-would-you-use-one)
* Can you describe the main difference between a `forEach` loop and a `.map()` loop and why you would pick one versus the other? (TODO)
* [What's a typical use case for anonymous functions?](#whats-a-typical-use-case-for-anonymous-functions)
* [How do you organize your code? (module pattern, classical inheritance?)](#how-do-you-organize-your-code-module-pattern-classical-inheritance)
* [What's the difference between host objects and native objects?](#whats-the-difference-between-host-objects-and-native-objects)
* [Difference between: function `Person(){}`, `var person = Person()`, and `var person = new Person()`?](#difference-between-function-person-var-person--person-and-var-person--new-person)
* [What's the difference between `.call` and `.apply`?](#whats-the-difference-between-call-and-apply)
* [Explain `Function.prototype.bind`.](#explain-functionprototypebind)
* [When would you use `document.write()`?](#when-would-you-use-documentwrite)
* [What's the difference between feature detection, feature inference, and using the UA string?](#whats-the-difference-between-feature-detection-feature-inference-and-using-the-ua-string)
* [Explain Ajax in as much detail as possible.](#explain-ajax-in-as-much-detail-as-possible)
* [What are the advantages and disadvantages of using Ajax?](#what-are-the-advantages-and-disadvantages-of-using-ajax)
* [Explain how JSONP works (and how it's not really Ajax).](#explain-how-jsonp-works-and-how-its-not-really-ajax)
* [Have you ever used JavaScript templating? If so, what libraries have you used?](#have-you-ever-used-javascript-templating-if-so-what-libraries-have-you-used)
* [Explain "hoisting".](#explain-hoisting)
* [Describe event bubbling.](#describe-event-bubbling)
* [What's the difference between an "attribute" and a "property"?](#whats-the-difference-between-an-attribute-and-a-property)
* [Why is extending built-in JavaScript objects not a good idea?](#why-is-extending-built-in-javascript-objects-not-a-good-idea)
* [Difference between document `load` event and document `DOMContentLoaded` event?](#difference-between-document-load-event-and-document-domcontentloaded-event)
* [What is the difference between `==` and `===`?](#what-is-the-difference-between--and-)
* [Explain the same-origin policy with regards to JavaScript.](#explain-the-same-origin-policy-with-regards-to-javascript)
* [Make this work: `duplicate([1,2,3,4,5]); // [1,2,3,4,5,1,2,3,4,5]`](#make-this-work)
* [Why is it called a Ternary expression, what does the word "Ternary" indicate?](#why-is-it-called-a-ternary-expression-what-does-the-word-ternary-indicate)
* [What is "use strict";? what are the advantages and disadvantages to using it?](#what-is-use-strict-what-are-the-advantages-and-disadvantages-to-using-it)
* [Create a for loop that iterates up to 100 while outputting "fizz" at multiples of 3, "buzz" at multiples of 5 and "fizzbuzz" at multiples of 3 and 5](#create-a-for-loop-that-iterates-up-to-100-while-outputting-fizz-at-multiples-of-3-buzz-at-multiples-of-5-and-fizzbuzz-at-multiples-of-3-and-5)
* [Why is it, in general, a good idea to leave the global scope of a website as-is and never touch it?](#why-is-it-in-general-a-good-idea-to-leave-the-global-scope-of-a-website-as-is-and-never-touch-it)
* [Why would you use something like the `load` event? Does this event have disadvantages? Do you know any alternatives, and why would you use those?](#why-would-you-use-something-like-the-load-event-does-this-event-have-disadvantages-do-you-know-any-alternatives-and-why-would-you-use-those)
* [Explain what a single page app is and how to make one SEO-friendly.](#explain-what-a-single-page-app-is-and-how-to-make-one-seo-friendly)
* [What is the extent of your experience with Promises and/or their polyfills?](#what-is-the-extent-of-your-experience-with-promises-andor-their-polyfills)
* [What are the pros and cons of using Promises instead of callbacks?](#what-are-the-pros-and-cons-of-using-promises-instead-of-callbacks)
* [What are some of the advantages/disadvantages of writing JavaScript code in a language that compiles to JavaScript?](#what-are-some-of-the-advantagesdisadvantages-of-writing-javascript-code-in-a-language-that-compiles-to-javascript)
* [What tools and techniques do you use debugging JavaScript code?](#what-tools-and-techniques-do-you-use-for-debugging-javascript-code)
* [What language constructions do you use for iterating over object properties and array items?](#what-language-constructions-do-you-use-for-iterating-over-object-properties-and-array-items)
* [Explain the difference between mutable and immutable objects.](#explain-the-difference-between-mutable-and-immutable-objects)
* [Explain the difference between synchronous and asynchronous functions.](#explain-the-difference-between-synchronous-and-asynchronous-functions)
* [What is event loop? What is the difference between call stack and task queue?](#what-is-event-loop-what-is-the-difference-between-call-stack-and-task-queue)
* [Explain the differences on the usage of `foo` between `function foo() {}` and `var foo = function() {}`](#explain-the-differences-on-the-usage-of-foo-between-function-foo--and-var-foo--function-)
* What are the differences between variables created using `let`, `var` or `const`? (TODO)
* What are the differences between ES6 class and ES5 function constructors? (TODO)
* Can you offer a use case for the new arrow => function syntax? How does this new syntax differ from other functions? (TODO)
* What advantage is there for using the arrow syntax for a method in a constructor? (TODO)
* What is the definition of a higher-order function? (TODO)
* Can you give an example for destructuring an object or an array? (TODO)
* ES6 Template Literals offer a lot of flexibility in generating strings, can you give an example? (TODO)
* Can you give an example of a curry function and why this syntax offers an advantage? (TODO)
* What are the benefits of using spread syntax and how is it different from rest syntax? (TODO)
* How can you share code between files? (TODO)
* Why you might want to create static class members? (TODO)

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