Function.csvSourceStructure

function csvSourceStructure(headers: readonly (string | null | undefined)[]): 
  | {
  columns: string[];
  format: "csv";
}
  | {
  format: "json";
  paths: string[];
}
  | null;

Canonical structure of a CSV header row, or null when the row cannot identify a structure (no columns, or any header empty/unusable once normalized — typically a headerless file).

Parameters

Parameter	Type
headers	readonly (string

Returns

| { columns: string[]; format: "csv"; } | { format: "json"; paths: string[]; } | null