Function isFileAttachment

src/client/stdlib/duckdb.js:374–381

(value)

// Returns true if the given value is an Observable FileAttachment.
function isFileAttachment(value) {
  return (
    value &&
    typeof value.name === "string" &&
    typeof value.url === "function" &&
    typeof value.arrayBuffer === "function"
  );
}

// Arquero tables have a `toArrowBuffer` function
function isArqueroTable(value) {