最近一段时间要毕业了，忙着找工作，见过不少笔试面试题，自己总结了一些加上网上找的一些整合了一下。答案暂时都东拼西凑出来了，但是还是先不发出来，一方面是答案并不是唯一的并且自己的答案不能保证对，另一方面希望看到本文的伙伴能自己去找答案，毕竟，技术只有自己真正理解了才是自己的东西，共勉。
小白第一次发文，恭请指点。
Web前端面试笔试题
Html+css
1.对WEB标准以及w3c的理解与认识。
2.Xhtml和html有什么区别。
3.css的引入方式有哪些？link和@import的区别是？
4.css选择符有哪些？哪些属性可以继承？优先级如何计算？内联和important哪个优先级高？
5.前端页面由哪三层构成，分别是什么？作用是什么？
6.css的基本语句构成是？
7.你曾经在哪些浏览器测试过兼容？这些浏览器的内核分别是什么？
8.标签上title与alt属性的区别是什么？
9.写出几种IE6 BUG的解决方法
10.描述css reset的作用和用途。
11.你如何对网站的文件和资源进行优化？期待的解决方案包括:
12.什么是语义化的html？
13.清除浮动有几种方式？各自的优缺点是？
14.浏览器标准模式和怪异模式之间的区别是什么？
15.解释下 CSS sprites，以及你要如何在页面或网站中使用它
16.讨论CSS hacks，条件引用或者其他?
17.解释下浏览器是如何判断元素是否匹配某个 CSS 选择器?
18.你能描述一下渐进增强和优雅降级之间的不同吗?
19.CSS字母大写?
20.CSS选择器都有哪些
21.超链接访问过后hover样式就不出现的问题是什么？如何解决？
22.浏览器还有默认的天生inline-block元素（拥有内在尺寸，可设置高宽，但不会自动换行），有哪些？
23.px和em，rem的区别
Javascript
1.javascript的typeof返回哪些数据类型？
2.例举3种强制类型转换和2种隐式类型转换。
3.Split()和join()的区别。
4.事件绑定和普通事件有什么区别？
5.数组方法pop() push() unshift() shift()
6.Ie和dom事件流的区别？
7.Ie和标准下有哪些兼容性的写法？
8.Ajax的get和post方式的区别？
9.call和apply的区别？
10.Ajax请求时，如何解析json数据？
11.什么是javascript的本地对象，内置对象和宿主对象？
12.Document load和document ready的区别？
13.编写一个数组去重的方法。
14.事件委托。
15.作用域链。
16.闭包。
17.如何阻止事件冒泡和默认事件。
18.javascript的同源策略。
19.JS排序算法。
20.解释jsonp的原理，以及为什么不是真正的ajax。
21.CSS预处理。
22.原型链。
23.你知道attribute和property的区别么。
24.解释下 JavaScript 中 this 是如何工作的。
25.解释下原型继承的原理?
26.AMD vs CommonJS?
27.AMD vs CMD?
28.扩展 JavaScript 内置对象?
29.如何从浏览器的 URL 中获取查询字符串参数?
30.什么是 "use strict"; ? 使用它的好处和坏处分别是什么?
31.常见兼容性问题?
32.html5有哪些新特性、移除了那些元素？如何处理HTML5新标签的浏览器兼容问题？如何区分 HTML 和HTML5？?
33.前端需要注意哪些SEO?
34.offsetWidth/offsetHeight,clientWidth/clientHeight与scrollWidth/scrollHeight的区别?
HTML: Is It a Programming Language or Something Else?Apr 15, 2025 am 12:13 AMHTMLisnotaprogramminglanguage;itisamarkuplanguage.1)HTMLstructuresandformatswebcontentusingtags.2)ItworkswithCSSforstylingandJavaScriptforinteractivity,enhancingwebdevelopment.
HTML: Building the Structure of Web PagesApr 14, 2025 am 12:14 AMHTML is the cornerstone of building web page structure. 1. HTML defines the content structure and semantics, and uses, etc. tags. 2. Provide semantic markers, such as, etc., to improve SEO effect. 3. To realize user interaction through tags, pay attention to form verification. 4. Use advanced elements such as, combined with JavaScript to achieve dynamic effects. 5. Common errors include unclosed labels and unquoted attribute values, and verification tools are required. 6. Optimization strategies include reducing HTTP requests, compressing HTML, using semantic tags, etc.
From Text to Websites: The Power of HTMLApr 13, 2025 am 12:07 AMHTML is a language used to build web pages, defining web page structure and content through tags and attributes. 1) HTML organizes document structure through tags, such as,. 2) The browser parses HTML to build the DOM and renders the web page. 3) New features of HTML5, such as, enhance multimedia functions. 4) Common errors include unclosed labels and unquoted attribute values. 5) Optimization suggestions include using semantic tags and reducing file size.
Understanding HTML, CSS, and JavaScript: A Beginner's GuideApr 12, 2025 am 12:02 AMWebdevelopmentreliesonHTML,CSS,andJavaScript:1)HTMLstructurescontent,2)CSSstylesit,and3)JavaScriptaddsinteractivity,formingthebasisofmodernwebexperiences.
The Role of HTML: Structuring Web ContentApr 11, 2025 am 12:12 AMThe role of HTML is to define the structure and content of a web page through tags and attributes. 1. HTML organizes content through tags such as , making it easy to read and understand. 2. Use semantic tags such as, etc. to enhance accessibility and SEO. 3. Optimizing HTML code can improve web page loading speed and user experience.
HTML and Code: A Closer Look at the TerminologyApr 10, 2025 am 09:28 AMHTMLisaspecifictypeofcodefocusedonstructuringwebcontent,while"code"broadlyincludeslanguageslikeJavaScriptandPythonforfunctionality.1)HTMLdefineswebpagestructureusingtags.2)"Code"encompassesawiderrangeoflanguagesforlogicandinteract
HTML, CSS, and JavaScript: Essential Tools for Web DevelopersApr 09, 2025 am 12:12 AMHTML, CSS and JavaScript are the three pillars of web development. 1. HTML defines the web page structure and uses tags such as, etc. 2. CSS controls the web page style, using selectors and attributes such as color, font-size, etc. 3. JavaScript realizes dynamic effects and interaction, through event monitoring and DOM operations.
The Roles of HTML, CSS, and JavaScript: Core ResponsibilitiesApr 08, 2025 pm 07:05 PMHTML defines the web structure, CSS is responsible for style and layout, and JavaScript gives dynamic interaction. The three perform their duties in web development and jointly build a colorful website.
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