🤖 Merge PR #45070 update(base64-js): v1.3 and UMD support by @peterblazejewicz

- update to v1.3 (no external API change)
- correct module definition to support direct use in browsers as package
  is exported as UMD
- tests updated
- maintainer added

https://unpkg.com/base64-js@1.3.1/base64js.min.js
https://github.com/beatgammit/base64-js#base64-js

Thanks!

types/base64-js/index.d.ts

@@ -1,8 +1,23 @@
-// Type definitions for base64-js 1.2
+// Type definitions for base64-js 1.3
 // Project: https://github.com/beatgammit/base64-js
 // Definitions by: Peter Safranek <https://github.com/pe8ter>
+//                 Piotr Błażejewicz <https://github.com/peterblazejewicz>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 
+/**
+ * Takes a base64 string and returns length of byte array
+ */
 export function byteLength(encoded: string): number;
+/**
+ * Takes a base64 string and returns a byte array
+ */
 export function toByteArray(encoded: string): Uint8Array;
+/**
+ * Takes a byte array and returns a base64 string
+ */
 export function fromByteArray(bytes: Uint8Array): string;
+
+/**
+ * base64-js does basic base64 encoding/decoding in pure JS.
+ */
+export as namespace base64js;

types/base64-js/test/base64-js-tests.cjs.ts

@@ -1,4 +1,4 @@
-import * as base64js from "base64-js";
+import base64js = require("base64-js");
 
 base64js.byteLength(""); // $ExpectType number
 base64js.toByteArray(""); // $ExpectType Uint8Array

types/base64-js/test/base64-js-tests.global.ts

@@ -0,0 +1,3 @@
+base64js.byteLength(''); // $ExpectType number
+base64js.toByteArray(''); // $ExpectType Uint8Array
+base64js.fromByteArray(new Uint8Array(0)); // $ExpectType string

types/base64-js/tsconfig.json

@@ -18,6 +18,7 @@
     },
     "files": [
         "index.d.ts",
-        "base64-js-tests.ts"
+        "test/base64-js-tests.cjs.ts",
+        "test/base64-js-tests.global.ts"
     ]
 }