1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
// Copyright 2019-2020 Yusuke Sakurai. All rights reserved. MIT license.const kBasicContentTypes: [string, string][] = [  [".html", "text/html"],  [".md", "text/markdown"],  [".txt", "text/plain"],  [".css", "text/css"],  [".jpg", "image/jpeg"],  [".jpeg", "image/jpeg"],  [".png", "image/png"],  [".gif", "image/gif"],  [".pdf", "application/pdf"],  [".zip", "application/zip"],  [".svg", "image/svg+xml"],  [".webp", "image/webp"],  [".js", "application/javascript"],  [".mjs", "application/javascript"],  [".jsx", "application/javascript"],  [".ts", "application/javascript"],  [".tsx", "application/javascript"],  [".json", "application/json"],];
const typeByExt: Map<string, string> = kBasicContentTypes.reduce(  (map, [e, t]) => map.set(e, t),  new Map(),);const extByType: Map<string, string> = kBasicContentTypes.reduce(  (map, [e, t]) => map.set(t, e),  new Map(),);
export function contentTypeByExt(extWithDot: string): string | undefined {  return typeByExt.get(extWithDot);}
export function extByContentType(contentType: string): string | undefined {  return extByType.get(contentType);}