Require Node.js 12.20 and move to ESM

Author: sindresorhus

.github/workflows/main.yml

@@ -10,13 +10,12 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
+          - 16
           - 14
           - 12
-          - 10
-          - 8
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-node@v1
+      - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
       - run: npm install

index.js

@@ -1,15 +1,17 @@
-'use strict';
-const errorEx = require('error-ex');
-const fallback = require('json-parse-even-better-errors');
+import {createRequire} from 'node:module';
+import errorEx from 'error-ex';
+import fallback from 'json-parse-even-better-errors';
+import {codeFrameColumns} from '@babel/code-frame';
+
+const require = createRequire(import.meta.url);
 const {default: LinesAndColumns} = require('lines-and-columns');
-const {codeFrameColumns} = require('@babel/code-frame');
 
-const JSONError = errorEx('JSONError', {
+export const JSONError = errorEx('JSONError', {
 	fileName: errorEx.append('in %s'),
-	codeFrame: errorEx.append('\n\n%s\n')
+	codeFrame: errorEx.append('\n\n%s\n'),
 });
 
-const parseJson = (string, reviver, filename) => {
+export default function parseJson(string, reviver, filename) {
 	if (typeof reviver === 'string') {
 		filename = reviver;
 		reviver = null;
@@ -39,16 +41,12 @@ const parseJson = (string, reviver, filename) => {
 			const codeFrame = codeFrameColumns(
 				string,
 				{start: {line: location.line + 1, column: location.column + 1}},
-				{highlightCode: true}
+				{highlightCode: true},
 			);
 
 			jsonError.codeFrame = codeFrame;
 		}
 
 		throw jsonError;
 	}
-};
-
-parseJson.JSONError = JSONError;
-
-module.exports = parseJson;
+}

package.json

@@ -10,8 +10,10 @@
 		"email": "sindresorhus@gmail.com",
 		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=8"
+		"node": "^12.20.0 || ^14.13.1 || >=16.0.0"
 	},
 	"scripts": {
 		"test": "xo && nyc ava"
@@ -32,14 +34,14 @@
 		"string"
 	],
 	"dependencies": {
-		"@babel/code-frame": "^7.0.0",
-		"error-ex": "^1.3.1",
-		"json-parse-even-better-errors": "^2.3.0",
+		"@babel/code-frame": "^7.16.0",
+		"error-ex": "^1.3.2",
+		"json-parse-even-better-errors": "^2.3.1",
 		"lines-and-columns": "^1.1.6"
 	},
 	"devDependencies": {
-		"ava": "^1.4.1",
-		"nyc": "^14.1.1",
-		"xo": "^0.24.0"
+		"ava": "^3.15.0",
+		"nyc": "^15.1.0",
+		"xo": "^0.46.4"
 	}
 }

readme.md

@@ -4,14 +4,14 @@
 
 ## Install
 
-```
-$ npm install parse-json
+```sh
+npm install parse-json
 ```
 
 ## Usage
 
 ```js
-const parseJson = require('parse-json');
+import parseJson from 'parse-json';
 
 const json = '{\n\t"foo": true,\n}';
 
@@ -88,7 +88,7 @@ Prescribes how the value originally produced by parsing is transformed, before b
 
 Type: `string`
 
-Filename displayed in the error message.
+The filename displayed in the error message.
 
 ### parseJson.JSONError
 

test.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import parseJson from '.';
+import parseJson, {JSONError} from './index.js';
 
 const jsonErrorRegex = /Unexpected token "}".*in foo\.json/;
 
@@ -10,7 +10,7 @@ test('main', t => {
 		parseJson('{\n\t"foo": true,\n}');
 	}, {
 		name: 'JSONError',
-		message: /Unexpected token "}"/
+		message: /Unexpected token "}"/,
 	});
 
 	t.throws(() => {
@@ -20,11 +20,15 @@ test('main', t => {
 			error.fileName = 'foo.json';
 			throw error;
 		}
-	}, jsonErrorRegex);
+	}, {
+		message: jsonErrorRegex,
+	});
 
 	t.throws(() => {
 		parseJson('{\n\t"foo": true,\n}', 'foo.json');
-	}, jsonErrorRegex);
+	}, {
+		message: jsonErrorRegex,
+	});
 
 	t.throws(() => {
 		try {
@@ -33,13 +37,15 @@ test('main', t => {
 			error.fileName = 'foo.json';
 			throw error;
 		}
-	}, jsonErrorRegex);
+	}, {
+		message: jsonErrorRegex,
+	});
 });
 
 test('throws exported error error', t => {
 	t.throws(() => {
 		parseJson('asdf');
 	}, {
-		instanceOf: parseJson.JSONError
+		instanceOf: JSONError,
 	});
 });