There are many optimization methods to solve this problem. One of them today is to remove and merge spaces and comments in js during Ant script packaging, this has not yet been implemented. 1. It indicates that extjs is relatively slow to run, especially when there are too many running data and js data, or wait for a long time.
There are many optimization methods to solve this problem. One of them today is to remove and merge spaces and comments in js during Ant script packaging, this has not yet been implemented.
2. First, prepare two. jar files, YUIAnt. jar and yuicompressor-2.4.x.jar.
3. attachments to the two files
4. the build. xml file is as follows:
The Code is as follows:
The Code is as follows:
5. Here, YUIAnt. jar does not support UTF-8 character sets when JavaScript compression is used. That is
The Code is as follows:
Encoding = "UTF-8
7. My personal feelings have been around for a long time. I thought it could improve the js loading speed. The result is still a little slow, not as fast as jquery, it is estimated that gzjs compression will speed up. Now I have analyzed that it is slower to run in IE, and faster in firefox. It seems that there are still a lot of js loaded in each module.
Comparison of optimization speed:
