Questions之Javascript

[pengjielee]

• Explain event delegation.

译：解释事件委托。
js中的事件委托：
http://www.tuicool.com/articles/jQZj6zB
JavaScript事件委托的技术原理：
http://www.webhek.com/event-delegate/
jquery中的事件委托：
http://www.cnblogs.com/thinksasa/p/3941739.html

• Explain how this works in JavaScript.

译：解释javascript中的this。
js中的this关键字详解：
http://www.jb51.net/article/41656.htm

• Explain how prototypal inheritance works.

译：解释原型继承。
浅析Javascript原型继承：
http://blog.csdn.net/kittyjie/article/details/4380918
再谈Javascript原型继承：
http://segmentfault.com/a/1190000000766541
前端开发必须知道的JS（一） 原型和继承：
http://www.cnblogs.com/ljchow/archive/2010/06/08/1753526.html
JS 面向对象之继承 -- 原型链：
http://www.cnblogs.com/yangjinjin/archive/2013/02/01/2889368.html

• What do you think of AMD vs CommonJS ?

译：你对AMD和CommonJs的看法？
什么是CommonJS?
http://www.cnblogs.com/fullhouse/archive/2011/07/15/2107416.html
浅析JS中的模块规范（CommonJS，AMD，CMD）：
http://www.2cto.com/kf/201411/348276.html
关于CommonJS：
http://raychase.iteye.com/blog/1463617
CommonJS Modules/1.0 规范：
http://blog.jobbole.com/49290/

• Explain why the following doesn't work as an IIFE: function foo(){ }();.
  What needs to be changed to properly make it an IIFE?

译：解释一下下面的立即执行方法为什么不工作？如何使它工作？
 JavaScript IIFE：
http://blog.csdn.net/ebw123/article/details/42428451
深入理解JavaScript系列（4）：立即调用的函数表达式：
http://www.cnblogs.com/TomXu/archive/2011/12/31/2289423.html
JavaScript的IIFE（即时执行方法）：
http://rensanning.iteye.com/blog/2080429
Javascript知识点：IIFE - 立即调用函数：
http://www.thinksaas.cn/group/topic/345843/

• What's the difference between a variable that is: null, undefined or undeclared?
  How would you go about checking for any of these states?

译：null、undefined、undeclared的区别是什么？如何检测这三种状态？
 JavaScript null和undefined区别分析：
http://www.jb51.net/article/20396.htm
探索JavaScript中Null和Undefined的坑：
http://developer.51cto.com/art/201401/426966.htm
javascript中null和undefined判断和区别分析：
http://www.111cn.net/wy/js-ajax/42461.htm
JavaScript 中 undefined 与 undeclared 之间的区别是什么：
http://www.zhihu.com/question/19966545/answer/13501801

• What is a closure, and how/why would you use one?

译：什么是闭包？如何使用？为什么要使用？
 深入理解js闭包：
http://www.jb51.net/article/24101.htm
Javascript闭包——懂不懂由你，反正我是懂了：
http://kb.cnblogs.com/page/110782/
学习Javascript闭包（Closure）：
http://www.ruanyifeng.com/blog/2009/08/learning_javascript_closures.html
javascript 闭包详解：
http://www.php100.com/html/it/focus/2014/1113/7796.html
JavaScript 闭包究竟是什么：
http://www.cnblogs.com/dolphinX/archive/2012/09/29/2708763.html
理解 Javascript 的闭包：
http://www.oschina.net/question/28_41112

• What's a typical use case for anonymous functions?

译：匿名函数的典型用例？
对JAVASCRIPT匿名函数的理解（透彻版)：
http://www.cnblogs.com/chenxianbin89/archive/2010/01/28/1658392.html
JavaScript中的匿名函数及函数的闭包：
http://www.cnblogs.com/rainman/archive/2009/05/04/1448899.html
js中匿名函数的N种写法：
http://www.jb51.net/article/24759.htm

• How do you organize your code? (module pattern, classical inheritance?)

译：你如何组织你的代码？（模块模式，类式继承？）
 如何组织你的javascript代码？
http://www.cnblogs.com/darkangle/archive/2010/08/23/1806365.html
如何组织大型JavaScript应用中的代码？
http://kb.cnblogs.com/page/176541/
JavaScript代码组织结构良好的5个特点[reuqire.js]
http://segmentfault.com/a/1190000002431855

• What's the difference between host objects and native objects?

译：宿主对象与内置对象的区别是什么？
javascript中本地对象、内置对象和宿主对象：
http://blog.csdn.net/zzjiadw/article/details/6881114
Javascript内置对象、原生对象、宿主对象关系：
http://blog.csdn.net/foamflower/article/details/9165691
JavaScript 本地对象、内置对象、宿主对象：
http://xiaogai1010.blog.163.com/blog/static/137170308201252893248730/
javascript 对象，本地对象、内置对象和宿主对象：
http://blog.sina.com.cn/s/blog_7122daac0100qg0i.html

• Difference between: function Person(){}, var person = Person(),and var person = new Person()?

JS的构造函数：
http://www.cnblogs.com/jikey/archive/2011/05/13/2045005.html
Javascript面向对象编程（二）：构造函数的继承：
http://www.ruanyifeng.com/blog/2010/05/object-oriented_javascript_inheritance.html
js五种设计模式说明与示例：
http://www.51xuediannao.com/qd63/index.php/page-2-53-1.html
前端开发必须知道的JS（一） 原型和继承：
http://www.cnblogs.com/ljchow/archive/2010/06/08/1753526.html

• What's the difference between .call and .apply?

 JavaScript中的apply()方法和call()方法使用介绍：
http://www.jb51.net/article/30883.htm

• Explain Function.prototype.bind .

 理解 JavaScript 中的 Function.prototype.bind
http://blog.jobbole.com/58032/
JavaScript中的prototype.bind()方法介绍：
http://www.jb51.net/article/48729.htm

• When would you use document.write()?

 js中document.write的那点事
http://www.cnblogs.com/dh616854836/articles/2140349.html
document.write()用法：
http://blog.csdn.net/youyedemeng/article/details/7925833
深入浅出JavaScript （五） 详解Document.write()方法：
http://blog.csdn.net/lilongsheng1125/article/details/8532828

• What's the difference between feature detection, feature inference, and using the UA string?

 HTML5系列四（特征检测、Modernizr.js的相关介绍）：
http://www.mamicode.com/info-detail-886035.html
 用于浏览器特征检测的JS框架：
http://www.woween.com/f2e/library/2013/03/19/js-framework-for-browser-feature-detection.html

• Explain AJAX in as much detail as possible.

Ajax 完整教程：
http://www.cnblogs.com/Garden-blog/archive/2011/03/11/1981778.html
纯js Ajax 请求：
http://akhuting.iteye.com/blog/936492

• Explain how JSONP works (and how it's not really AJAX).

jsonp详解：
http://www.cnblogs.com/lemontea/archive/2012/12/11/2812268.html
jsonp原理及使用：
http://www.jb51.net/article/42472.htm
jsonp详解：
http://www.cnblogs.com/yuwensong/archive/2013/05/28/3103064.html
JSONP跨域原理和jQuery.getJSON用法：
http://developer.51cto.com/art/201105/264791.htm

• Have you ever used JavaScript templating?
  If so, what libraries have you used?

最简单的JavaScript模板引擎：
http://www.cnblogs.com/dolphinX/archive/2013/12/27/3489269.html
Juicer – 一个Javascript模板引擎的实现和优化：
http://url2.biz/bHZI
jquery作者John Resig编写的微模板引擎:JavaScript Micro-Templating：
http://blog.csdn.net/jyy_12/article/details/8494082
推荐五款流行的JavaScript模板引擎：
http://www.php100.com/html/program/javascript/2013/0922/6219.html

• Explain "hoisting".

JavaScript中变量提升 Hoisting：
http://www.jb51.net/article/30719.htm
javascript变量声明提升(hoisting)：
http://openwares.net/js/javascript_declaration_hoisting.html
javascript中变量声明提升（Hoisting）的理解：
http://hszy00232.blog.163.com/blog/static/43022753201131315817814/
JavaScript中变量提升------Hoisting：
http://www.cnblogs.com/damonlan/archive/2012/07/01/2553425.html
javascript变量声明提升(hoisting)：
http://segmentfault.com/a/1190000002582759

• Describe event bubbling.

Javascript 之 事件冒泡(Event Bubbling)：
http://www.cnblogs.com/goyier/articles/1268709.html
js之事件冒泡和事件捕获详细介绍：
http://www.jb51.net/article/42492.htm
Js 冒泡事件阻止：
http://www.cnblogs.com/jams742003/archive/2009/08/29/1556187.html

• What's the difference between an "attribute" and a "property"?

js中的attribute详解
http://mengzhixing999.blog.163.com/blog/static/22291559201071921625203/
JavaScript对象的property属性详解：
http://www.jb51.net/article/48594.htm

• Why is extending built-in JavaScript objects not a good idea?

js内置对象：
http://www.jb51.net/article/27855.htm
monkey patching(即给内置对象扩展方法)是一种好的编程习惯吗？
http://segmentfault.com/q/1010000000095871
JavaScript原生对象及扩展：
http://segmentfault.com/a/1190000002634958

• Difference between document load event and document ready event?

jQuery $(document).ready()和JavaScript onload事件：
http://www.cnblogs.com/mengdd/p/4276801.html

• 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?

js中作用域：
http://www.studyofnet.com/news/294.html
js作用域：
http://www.cnblogs.com/qixuejia/archive/2009/12/18/1626951.html
js作用域与作用域链详解：
http://blog.csdn.net/yueguanghaidao/article/details/9568071
javascript 函数及作用域总结介绍：
http://www.jb51.net/article/43068.htm

• 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?

javascript addLoadEvent函数说明：
http://www.jb51.net/article/21707.htm

• Explain what a single page app is and how to make one SEO-friendly.

单页Web应用或引领下一代Web新趋势？
http://www.csdn.net/article/2012-12-10/2812658-Single-Page-Applications
【WebApp】单页webapp应用开发总结【暂完】：
http://my.oschina.net/maomi/blog/183790?p=1
mobilebone.js-mobile移动web APP单页切换骨架：
http://www.zhangxinxu.com/wordpress/2014/10/mobilebone-js-mobile-web-app-core/
探讨webapp的SEO难题（上）：
http://www.cnblogs.com/yexiaochai/p/3886925.html

• 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.
  • What is an example of an immutable object in JavaScript?
  • What are the pros and cons of immutability?
  • How can you achieve immutability in your own code?

• Explain the difference between synchronous and asynchronous functions.

js中同步与异步处理的方法和区别总结：
http://www.jb51.net/article/44852.htm
基于事件的JavaScript编程：异步与同步：
http://developer.51cto.com/art/201303/383862.htm
Javascript异步编程的4种方法：
http://www.ruanyifeng.com/blog/2012/12/asynchronous%EF%BC%BFjavascript.html

• What is event loop?
  What is the difference between call stack and task queue?

JavaScript运行机制之事件循环(Event Loop)详解：
http://www.bitscn.com/school/Javascript/201410/347549.html
理解Node.js的事件循环：
http://blog.csdn.net/yanghua_kobe/article/details/12145537
JavaScript 运行机制详解：再谈Event Loop：
http://www.ruanyifeng.com/blog/2014/10/event-loop.html

原：https://github.com/h5bp/Front-end-Developer-Interview-Questions#js-questions