Why is Vue.filter in front of new vue?

Why should Vue.filter be placed in front of new vue

I hope the Great God can help me with an answer

Thank you

Mar.28,2021

because a new object is created during new vue, the original Vue object is changed and will not affect the new object

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-64f5-1e47840-665de.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e47840-665de.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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