Variable: js--treesit-optional-keywords
js--treesit-optional-keywords is a variable defined in js.el.gz.
Value
("using")
Documentation
JavaScript optional keywords for tree-sitter font-locking.
Source Code
;; Defined in /usr/src/emacs/lisp/progmodes/js.el.gz
;; "using" support was only added in tree-sitter-javascript 0.25.0, in
;; https://github.com/tree-sitter/tree-sitter-javascript/commit/ebdb4f17a4da79a70344a41ae76bb95b2415a653
;; So make it optional
(defvar js--treesit-optional-keywords
'("using")
"JavaScript optional keywords for tree-sitter font-locking.")