deno_web 0.94.0

Collection of Web APIs
Documentation 
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
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69

// Copyright 2018-2022 the Deno authors. All rights reserved. MIT license.

// @ts-check
/// <reference path="../../core/internal.d.ts" />
/// <reference path="../webidl/internal.d.ts" />
/// <reference path="../web/internal.d.ts" />
/// <reference lib="esnext" />

"use strict";

((window) => {
  const core = Deno.core;
  const webidl = window.__bootstrap.webidl;
  const { DOMException } = window.__bootstrap.domException;
  const { TypeError } = window.__bootstrap.primordials;

  /**
   * @param {string} data
   * @returns {string}
   */
  function atob(data) {
    const prefix = "Failed to execute 'atob'";
    webidl.requiredArguments(arguments.length, 1, { prefix });
    data = webidl.converters.DOMString(data, {
      prefix,
      context: "Argument 1",
    });
    try {
      return core.opSync("op_base64_atob", data);
    } catch (e) {
      if (e instanceof TypeError) {
        throw new DOMException(
          "Failed to decode base64: invalid character",
          "InvalidCharacterError",
        );
      }
      throw e;
    }
  }

  /**
   * @param {string} data
   * @returns {string}
   */
  function btoa(data) {
    const prefix = "Failed to execute 'btoa'";
    webidl.requiredArguments(arguments.length, 1, { prefix });
    data = webidl.converters.DOMString(data, {
      prefix,
      context: "Argument 1",
    });
    try {
      return core.opSync("op_base64_btoa", data);
    } catch (e) {
      if (e instanceof TypeError) {
        throw new DOMException(
          "The string to be encoded contains characters outside of the Latin1 range.",
          "InvalidCharacterError",
        );
      }
      throw e;
    }
  }

  window.__bootstrap.base64 = {
    atob,
    btoa,
  };
})(globalThis);