Web Front End Interview Pen question summary

recently a time to graduate, busy looking for work, have seen a lot of written interview questions, summed up some of the online to find some integration of a bit. The answer is patchwork out, but still do not send out, on the one hand is the answer is not the only and their answers can not be guaranteed, on the other hand, I hope to see the partners can find their own answers, after all, technology only their own real understanding is the thing, mutual encouragement.

Small white for the first time, are kindly invited pointing.

Web Front-end Interview Pen questions Html+css

1. knowledge and understanding of Web standards and the website.

2.What is the difference between XHTML and HTML?

3.What are the ways to introduce CSS? What is the difference between link and @import?

4.What are CSS selectors? Which properties can be inherited? How is the priority calculated? What is the high priority of inline and important?

5. what are the three layers of the front-end page, and what are the respective ones? What is the role?

6.What is the basic statement structure of CSS?

7. which browsers have you tested for compatibility? What are the cores of these browsers?

8.What is the difference between the title and Alt attribute on the tab?

9. How to solve several IE6 bugs

describe the role and purpose of CSS reset.

How do you optimize your website's files and resources? The expected solutions include:

What is semantic html?

There are several ways to clear the float? What are their strengths and weaknesses?

What is the difference between browser standard mode and weird mode?

Explain the CSS sprites and how you want to use it in a page or Web site .

about CSS hacks, conditional references, or other?

explain how the browser determines if an element matches a CSS selector?

can you describe the difference between progressive enhancement and graceful demotion?

CSS letter capitalization?

What are theCSS selectors ?

What is the problem with the hover style not appearing after the hyperlink has been accessed? How to solve?

The browser also has the default natural inline-block element (with intrinsic dimensions, can be set to high width, but not automatically wrapped), what is there?

the difference between PX and Em,rem

Javascript

1.What data types are returned by JavaScript typeof?

2. examples of 3 forced-type conversions and 2 implicit type conversions.

3.the difference between Split () and join ().

4. What is the difference between event bindings and ordinary events?

5. Array Method Pop () push () unshift () Shift ()

6. Whatis the difference between IE and DOM event streams?

7.what is the compatibility of IE and standard?

8. Whatis the difference between the get and post methods of Ajax?

9. Whatis the difference between call and apply?

How do I parse JSON data when I request Ajax?

what are JavaScript local objects, built-in objects, and host objects?

Whatis the difference between document load and document ready?

write an array de-weight method.

Event delegation.

scope chain.

closed package.

how to block event bubbling and default events.

The same-origin strategy for JavaScript.

.js sorting algorithm.

explain the principles of JSONP, and why not real Ajax.

CSS preprocessing.

prototype chain.

you know the difference between a attribute and a property.

explain how this works in JavaScript.

explain the principle of prototype inheritance?

AMD vs CommonJS?

AMD vs CMD?

extended JavaScript built-in objects?

how to get query string parameters from the URL of the browser?

what is "use strict" and what are the advantages and disadvantages of using it?

A. common compatibility issues?

What are the new features and elements removed from HTML5? How do I handle browser compatibility issues with HTML5 new tags? How to differentiate between HTML and HTML5??

What SEO should I pay attention to at the front end?

Whatis the difference between offsetwidth/offsetheight,clientwidth/clientheight and scrollwidth/scrollheight?

Web Front End Interview Pen question summary