acceptsLanguages | /http/negotiation.ts | std@0.181.0

function acceptsLanguages

import { acceptsLanguages } from "https://dotland.deno.dev/std@0.181.0/http/negotiation.ts";

acceptsLanguages(request: Request): string[]

Returns an array of languages accepted by the request, in order of preference. If there are no languages supplied in the request, then ["*"] is returned, imply any language is accepted.

acceptsLanguages(request: Request, ...langs: string[]): string | undefined

For a given set of languages, return the best match accepted in the request. If no languages match, then the function returns undefined.

Returns an array of languages accepted by the request, in order of preference. If there are no languages supplied in the request, then ["*"] is returned, imply any language is accepted.

Examples

Example 1

import { acceptsLanguages } from "https://deno.land/std@0.181.0/http/negotiation.ts";

const req = new Request("https://example.com/", {
  headers: {
    "accept-language": "fr-CH, fr;q=0.9, en;q=0.8, de;q=0.7, *;q=0.5",
  },
});

acceptsLanguages(req); // ["fr-CH", "fr", "en", "de", "*"]

import { acceptsLanguages } from "https://deno.land/std@0.181.0/http/negotiation.ts";

const req = new Request("https://example.com/", {
  headers: {
    "accept-language": "fr-CH, fr;q=0.9, en;q=0.8, de;q=0.7, *;q=0.5",
  },
});

acceptsLanguages(req, "en-gb", "en-us", "en"); // "en"

Parameters

request: Request

...langs: string[]

Returns

string | undefined