The handle response of jquery is very slow, how to optimize it

In the

company"s project, as the response of iterating some operations becomes slower and slower, the slowest time an operation can have is more than 550ms

.

clipboard.png

want to optimize it, but Mengxin doesn"t know exactly where to start. I also want to ask the bosses.

Jquery-event html javascript-performance
Jul.02,2021

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1bebc93-31ac1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1bebc93-31ac1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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