Vue renders data from vuex, refresh will prompt undefined

v-for="(item, index) in dictionary.data.online_home_module" :key="index"

...mapGetters({
    dictionary: "dictionary"
})

data is available. There is also a warning when you use v-if to judge undefined, but the rendering is normal

.

how do I prevent warnings here?

Mar.02,2021

similar problems

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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-64f5-1b2e92a-2bc2e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b2e92a-2bc2e.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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