React: I introduced jquery, in index.html why components can't access $, must add window.$

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Mar.06,2021

eslint checks undefined variables, you know, others don't know;


component import

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-64f5-1e44e5f-43828.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e44e5f-43828.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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