Why can't window.config.address get the address under config?

I set up a config folder in src to store the test address, but I did not get the test address by using window.config.hostAddress in other components. I printed undefined
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Html5 node.js vue.js javascript
May.07,2022

variable names are strictly uppercase
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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-64f5-1b3b687-2c2a5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1b3b687-2c2a5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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