1. JavaScript Performance Optimization
Reduce Our Page Load Time
Speaker : Mr.Jang
1

2. 2
Contents
▪ Browser Behavior
▪ The Basic Website Optimization
▪ Coding to Improve Performance
▪ Rendering
▪ UI Thread and Timer
▪ DOM Scripting
▪ AJAX and Dynamic Loading

3. 3
Prompt for unload
Redirect
Application Cache
Network
Processing
Browser Behavior

4. 4
Prompt for unload
Release the memory before moving the page

5. 5
Redirect
Sending the URL requested by the user to another URL

6. 6
Application Cache
Look for data in the cache without a request to the server

7. 7
Network
The request data to the server and receive data from the server
www.naver.com
Browser
DNS Server
202.131.xxx.xxx
사용자
www.naver.com
Server
request
response

8. 8
Processing
Combining the data received from the server generates a page
:
+

9. 9
Contents
▪ Browser Behavior
▪ The Basic Website Optimization
▪ Coding to Improve Performance
▪ Rendering
▪ UI Thread and Timer
▪ DOM Scripting
▪ AJAX and Dynamic Loading