Dangdang-front-end engineer Testing

Front-end engineer test questions (written examination time: 20 minutes; interview time: 20 minutes)

 

I. Written Test

1. Basic Questions

(1) What are the three layers of front-end pages? What is the role?

(2) What is Doctype? Strict mode and hybrid mode-how to trigger these two modes and distinguish between them?

(3) What are inline elements? What are the block-level elements? <Div> what is the difference between a tag and a <span> tag?

(4) What are CSS delimiters? What attributes can be inherited? How is the priority algorithm calculated? Which of the following is the highest priority for inner and important?

(5) Compile a method using jQuery. Click a button to change the text related to the button through AJAX.

2. Select a question

(6) How to Implement TabView?

(7) Write a method in JS to remove the repeated elements of an array.

 

2. Answer 3 questions during the interview (50 points)

(8) Have you followed HTML5 and CSS3? If so, what do you know about them?

(9) How can JS be combined with HTML and CSS development? How do you manage all CSS files, JS files, and images if you want to create a large website with high traffic?

(10) What are currently popular JS libraries and frameworks? Which framework do you know best and what advantages does it have?

(11) how to compare Flash and Ajax technologies?

(12) In which browsers have you tested your webpage? What are the kernels of these browsers? What are the compatibility of browsers that we often encounter? Why? What is the solution?

(13) How do you understand the job as a page reconstruction engineer? What is its prospect? Your personal position?

(14) How do you implement the design diagram?

(15) briefly describe the concept of Javascript closure?