DefinitelyTyped/types/content-disposition/content-disposition-tests.ts

import contentDisposition = require("content-disposition");

const noParams = contentDisposition();
const withFilenameNoOptions = contentDisposition("EURO rates.txt");
const withFilenameAndOptions = contentDisposition("€ rates.txt", { type: "attachment", fallback: "EURO rates.txt" });
const noFilename = contentDisposition(undefined, { type: "attachment", fallback: true });

const res = contentDisposition.parse('attachment; filename="EURO rates.txt"');
const type = res.type;
const parameters = res.parameters;