How does vscode add emmet support for a file type?

when using artTemplate , the .art file does not support emmet . How to set up vscode?


resolved

"files.associations": {
    "*.art":"html"
 }
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-64f5-7b3cdd-12add.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b3cdd-12add.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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