gradio/frontend

1import type { CellValue } from "../types";2 3export type Headers = string[];4export type Data = CellValue[][];5 6export type Datatype =7	| "str"8	| "number"9	| "bool"10	| "date"11	| "markdown"12	| "html"13	| "image";14 15export type Metadata = {16	[key: string]: string[][] | null;17} | null;18export type HeadersWithIDs = { value: string; id: string }[];19export type DataframeValue = {20	data: Data;21	headers: Headers;22	metadata?: Metadata;23};24 25/**26 * Coerce a value to a given type.27 * @param v - The value to coerce.28 * @param t - The type to coerce to.29 * @returns The coerced value.30 */31export function cast_value_to_type(v: any, t: Datatype): CellValue {32	if (t === "number") {33		const n = Number(v);34		return isNaN(n) ? v : n;35	}36	if (t === "bool") {37		if (typeof v === "boolean") return v;38		if (typeof v === "number") return v !== 0;39		const s = String(v).toLowerCase();40		if (s === "true" || s === "1") return true;41		if (s === "false" || s === "0") return false;42		return v;43	}44	if (t === "date") {45		const d = new Date(v);46		return isNaN(d.getTime()) ? v : d.toISOString();47	}48	return v;49}50 51export interface EditData {52	index: number | [number, number];53	value: string;54	previous_value: string;55}56