Support node 18 again. This may break some bundlers, in which case t…

.github/workflows/node.js.yml

@@ -12,7 +12,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [20.x, 22.x]
+        node-version: [18.x, 20.x, 22.x]
         platform: [ubuntu-latest]
 
     runs-on: ${{ matrix.platform }}

package.json

@@ -31,16 +31,17 @@
   },
   "devDependencies": {
     "@cto.af/eslint-config": "4.1.6",
+    "@types/node": "22.5.4",
     "c8": "10.1.2",
     "eslint-plugin-jsdoc": "50.2.2",
     "eslint-plugin-markdown": "5.1.0",
     "rimraf": "6.0.1",
     "typedoc": "0.26.7",
-    "typescript-eslint": "8.5.0",
-    "typescript": "5.6.2"
+    "typescript": "5.6.2",
+    "typescript-eslint": "8.5.0"
   },
   "packageManager": "pnpm@9.10.0",
   "engines": {
-    "node": ">=20"
+    "node": ">=18"
   }
 }

src/index.ts

@@ -13,6 +13,15 @@ export type FreqArray<T> = T[] & {
   [FREQ_SYM]?: number[];
 };
 
+interface GRV {
+  getRandomValues<T extends ArrayBufferView | null>(array: T): T;
+}
+
+const ourCrypto = (
+  // eslint-disable-next-line n/no-unsupported-features/node-builtins
+  (typeof crypto === 'undefined') ? (await import('node:crypto')) : crypto
+) as GRV;
+
 /**
  * Default RNG that uses crypto.randomBytes.
  * @param size Number of bytes.
@@ -25,8 +34,7 @@ export const randBytes: RandBytes = (
   assert(reason);
   const array = new Uint8Array(size);
 
-  // eslint-disable-next-line n/no-unsupported-features/node-builtins
-  return crypto.getRandomValues(array);
+  return ourCrypto.getRandomValues(array);
 };
 
 /**

test/assert.test.js

@@ -1,4 +1,5 @@
 import {assert} from '../lib/assert.js';
+// eslint-disable-next-line n/no-unsupported-features/node-builtins
 import {test} from 'node:test';
 import {throws} from 'node:assert/strict';
 

test/index.test.js

@@ -2,14 +2,17 @@ import {deepEqual, equal, ok, throws} from 'node:assert/strict';
 import {Buffer} from 'node:buffer';
 import {Modnar} from './fixtures/modnar.js';
 import {Random} from '../lib/index.js';
+// eslint-disable-next-line n/no-unsupported-features/node-builtins
 import {test} from 'node:test';
 
+// eslint-disable-next-line n/no-unsupported-features/node-builtins
 test.beforeEach(t => {
   const m = new Modnar();
   const r = new Random(m.source);
   t.context = {m, r};
 });
 
+// eslint-disable-next-line n/no-unsupported-features/node-builtins
 test.afterEach(t => {
   ok(t.context.m.isDone);
 });

test/vose.test.js

@@ -1,6 +1,7 @@
 import {equal, ok, throws} from 'node:assert/strict';
 import {Random} from '../lib/index.js';
 import {Vose} from '../lib/vose.js';
+// eslint-disable-next-line n/no-unsupported-features/node-builtins
 import test from 'node:test';
 
 test('vose', () => {