chore: update library to work in node 24+

Author: juanjoDiaz

.github/workflows/on-push.yaml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest] # macos-latest is too slow
-        node-version: [20.x, 18.x]
+        node-version: [24.x, 22.x, 20.x]
 
     steps:
       - uses: actions/checkout@v4

.github/workflows/on-release.yaml

@@ -22,7 +22,7 @@ jobs:
       # Setup .npmrc file to publish to npm
       - uses: actions/setup-node@v4
         with:
-          node-version: '20.x'
+          node-version: '24.x'
           # Needs to be explicitly specified for auth to work
           registry-url: 'https://registry.npmjs.org'
       - run: npm ci

package-lock.json

@@ -32,12 +32,15 @@
     "build:mjs": "tsc --module esnext --outDir ./bin",
     "build": "npm run build:mjs",
     "pretest": "npm run build",
-    "test:raw": "node --loader ts-node/esm test/index.ts",
+    "test:raw": "node test/index.ts",
     "test": "npm run test:raw | tap-spec",
     "test-with-coverage": "c8 --reporter=text npm test",
     "dependencies:update-internal": "npm uninstall @json2csv/formatters @json2csv/node @json2csv/transforms && npm install @json2csv/formatters @json2csv/node @json2csv/transforms",
     "prepublishOnly": "npm run build"
   },
+  "devDependencies": {
+    "@types/node": "^22.9.0"
+  },
   "dependencies": {
     "@json2csv/formatters": "^7.0.7",
     "@json2csv/node": "^7.0.7",

packages/cli/package.json

@@ -174,9 +174,9 @@ process.stdout.on('error', (error) => {
 async function getInputJSON<TRaw>(inputPath: string): Promise<TRaw> {
   const assert =
     extname(inputPath).toLowerCase() === '.json'
-      ? { assert: { type: 'json' } }
+      ? { with: { type: 'json' } }
       : undefined;
-  const { default: json } = await import(`file://${inputPath}`, assert);
+  const { default: json } = await import(`file://${inputPath}`, assert as any); // TODO remove castonce @types/node can be updated which requires updating typescript to 5.2+
   return json;
 }
 

packages/cli/src/json2csv.ts

@@ -2,7 +2,7 @@ import { promises as fsPromises } from 'fs';
 import { join as joinPath } from 'path';
 import { exec } from 'child_process';
 import { promisify } from 'util';
-import TestRunner from '@json2csv/test-helpers/TestRunner.js';
+import TestRunner from '@json2csv/test-helpers/TestRunner.ts';
 
 const { mkdir, rm, readFile } = fsPromises;
 

packages/cli/test/CLI.ts

@@ -1,7 +1,7 @@
-import { fixtures } from '@json2csv/test-helpers/fixtureLoader.js';
+import { fixtures } from '@json2csv/test-helpers/fixtureLoader.ts';
 
-import CLI from './CLI.js';
-import parseNdjson from './parseNdjson.js';
+import CLI from './CLI.ts';
+import parseNdjson from './parseNdjson.ts';
 
 async function run() {
   const { jsonFixtures, csvFixtures } = await fixtures;

packages/cli/test/index.ts

@@ -1,4 +1,4 @@
-import TestRunner from '@json2csv/test-helpers/TestRunner.js';
+import TestRunner from '@json2csv/test-helpers/TestRunner.ts';
 import parsendjson from '../bin/utils/parseNdjson.js';
 
 export default function (jsonFixtures: Record<string, () => any>) {

packages/cli/test/parseNdjson.ts

@@ -43,7 +43,7 @@
     "pretest": "npm run build",
     "test": "node test/CommonJS.cjs && npm run test:raw | tap-spec",
     "test-with-coverage": "c8 --reporter=text npm test",
-    "test:raw": "node --loader ts-node/esm test/index.ts",
+    "test:raw": "node test/index.ts",
     "dependencies:update-internal": "npm uninstall @json2csv/plainjs && npm install @json2csv/plainjs",
     "prepublishOnly": "npm run build"
   },

packages/node/package.json

@@ -1,8 +1,8 @@
 import { type Readable, Writable } from 'stream';
 
-import TestRunner from '@json2csv/test-helpers/TestRunner.js';
-import { forceLfEol } from '@json2csv/test-helpers/utils.js';
-import type CarInfo from '@json2csv/test-helpers/fixtures/types/carInfo.js';
+import TestRunner from '@json2csv/test-helpers/TestRunner.ts';
+import { forceLfEol } from '@json2csv/test-helpers/utils.ts';
+import type CarInfo from '@json2csv/test-helpers/fixtures/types/carInfo.ts';
 import { flatten, unwind } from '@json2csv/transforms';
 import {
   number as numberFormatter,