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Additional arguments can be passed in to the function from SurrealDB, and these are accessible as an array using the arguments object within the JavaScript function.

-- Create a new parameter
LET $val = "SurrealDB";
-- Create a new parameter
LET $words = ["awesome", "advanced", "cool"];
-- Pass the parameter values into the function
CREATE article SET summary = function($val, $words) {
const [val, words] = arguments;
return `${val} is ${words.join(', ')}`;