Symbol problem of es6

what are the two types of attribute names of an object? ask for guidance. Isn"t the previous string a type? there can be many attributes and names in an object.
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May.13,2022

is the type of key. The key of an object cannot be defined in this way.

{
    function(){}: xxx
}

is string and Symbol ah

 let obj = {[Symbol('mykey')]:'123'}
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-64f5-1e50ac4-450c1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e50ac4-450c1.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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