React implements tag switching. It is invalid when clicking on the tag. The error is shown in the figure.
Es7 javascript es6 react.js
Mar.24,2021

this of onClick points to the wrong

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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-64f5-1b226c2-2b5fb.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b226c2-2b5fb.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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