Make package ESM

.editorconfig

@@ -0,0 +1,12 @@
+root = true
+
+[*]
+indent_style = tab
+end_of_line = lf
+charset = utf-8
+trim_trailing_whitespace = true
+insert_final_newline = true
+
+[*.yml]
+indent_style = space
+indent_size = 2

.eslintrc.json

@@ -1,49 +1,34 @@
 {
-    "env": {
-        "es6": true,
-        "node": true
-    },
-    "extends": [
-        "eslint:recommended",
-        "airbnb-base"
-    ],
-    "parserOptions": {
-        "ecmaVersion": 11,
-        "sourceType": "module"
-    },
-    "rules": {
-        "indent": [
-            "error",
-            4,
-            {"SwitchCase": 1}
-        ],
-        "quotes": [
-            "error",
-            "single"
-        ],
-        "semi": [
-            "error",
-            "always"
-        ],
-        "linebreak-style": "off",
-        "arrow-parens": [
-            "error",
-            "as-needed"
-        ],
-        "object-curly-spacing": [
-            "error",
-            "never"
-        ],
-        "comma-dangle": [
-            "error",
-            "never"
-        ],
-        "no-console": "off",
-        "max-len": "off",
-        "no-plusplus": "off",
-        "strict": "off",
-        "consistent-return": "off",
-        "no-loop-func": "off",
-        "no-shadow": "off"
-    }
+	"env": {
+		"es6": true,
+		"node": true
+	},
+	"extends": [
+		"eslint:recommended",
+		"airbnb-base",
+		"plugin:ava/recommended",
+		"plugin:import/recommended",
+		"plugin:unicorn/recommended"
+	],
+	"parserOptions": {
+		"ecmaVersion": 2023,
+		"sourceType": "module"
+	},
+	"rules": {
+		"indent": ["error", "tab", {"SwitchCase": 1}],
+		"no-tabs": "off",
+		"quotes": ["error", "single"],
+		"semi": ["error", "always"],
+		"linebreak-style": "off",
+		"arrow-parens": ["error", "as-needed"],
+		"object-curly-spacing": ["error", "never"],
+		"comma-dangle": ["error", "never"],
+		"no-console": "off",
+		"max-len": "off",
+		"no-plusplus": "off",
+		"strict": "off",
+		"consistent-return": "off",
+		"no-loop-func": "off",
+		"no-shadow": "off"
+	}
 }

.gitattributes

@@ -1,2 +1 @@
-# Auto detect text files and perform LF normalization
-* text=auto
+* text=auto eol=lf

.github/workflows/main.yml

@@ -9,9 +9,8 @@ jobs:
     strategy:
       matrix:
         node-version:
-          - 14
-          - 12
-          - 10
+          - 18
+          - 16
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2

README.md

@@ -5,20 +5,20 @@
 ## Installation
 
 ```
-$ npm install --global square-and-multiply-cli
+npm install --global square-and-multiply-cli
 ```
 
 ## Usage
 
 ```
 $ square-and-multiply --help
 
-        Usage
-          $ square-and-multiply <base> <exponent> <modulus>
-        
-        Examples
-          $ square-and-multiply 14 27 37
-          $ square-and-multiply 23 22 86
+  Usage
+    $ square-and-multiply <base> <exponent> <modulus>
+
+  Examples
+    $ square-and-multiply 14 27 37
+    $ square-and-multiply 23 22 86
 ```
 
 ## Related

cli.js

@@ -1,26 +1,24 @@
 #!/usr/bin/env node
 
-'use strict';
-
-const squareAndMultiply = require('square-and-multiply');
-const meow = require('meow');
+import squareAndMultiply from 'square-and-multiply';
+import meow from 'meow';
 
 const cli = meow(`
-        Usage
-        $ square-and-multiply <base> <exponent> <modulus>
-        
-        Examples
-        $ square-and-multiply 14 27 37
-        $ square-and-multiply 23 22 86
-`);
+	Usage
+	  $ square-and-multiply <base> <exponent> <modulus>
+
+	Examples
+	  $ square-and-multiply 14 27 37
+	  $ square-and-multiply 23 22 86
+`, {importMeta: import.meta});
 
 const basis = cli.input[0];
 const exponent = cli.input[1];
 const modulus = cli.input[2];
 
 if (!(basis && exponent && modulus)) {
-    console.log('You need to specify all three numbers.');
-    process.exit(1);
+	console.log('You need to specify all three numbers.');
+	process.exit(1);
 }
 
 console.log(squareAndMultiply(basis, exponent, modulus));

package.json

@@ -1,37 +1,44 @@
 {
-  "name": "square-and-multiply-cli",
-  "version": "2.0.1",
-  "description": "Get the square and multiply CLI",
-  "repository": "knutkirkhorn/square-and-multiply-cli",
-  "bin": {
-    "square-and-multiply": "cli.js"
-  },
-  "main": "index.js",
-  "scripts": {
-    "test": "ava",
-    "lint": "eslint ."
-  },
-  "files": [
-    "cli.js"
-  ],
-  "keywords": [
-    "square",
-    "and",
-    "multiply",
-    "math",
-    "cli"
-  ],
-  "author": "Knut Kirkhorn",
-  "license": "MIT",
-  "dependencies": {
-    "meow": "^8.1.0",
-    "square-and-multiply": "^1.0.5"
-  },
-  "devDependencies": {
-    "ava": "^3.15.0",
-    "eslint": "^7.26.0",
-    "eslint-config-airbnb-base": "^14.2.1",
-    "eslint-plugin-import": "^2.22.1",
-    "execa": "^5.0.0"
-  }
+	"name": "square-and-multiply-cli",
+	"version": "2.0.1",
+	"description": "Get the square and multiply CLI",
+	"repository": "knutkirkhorn/square-and-multiply-cli",
+	"bin": {
+		"square-and-multiply": "cli.js"
+	},
+	"scripts": {
+		"test": "ava",
+		"lint": "eslint ."
+	},
+	"files": [
+		"cli.js"
+	],
+	"keywords": [
+		"square",
+		"and",
+		"multiply",
+		"math",
+		"cli"
+	],
+	"author": "Knut Kirkhorn",
+	"type": "module",
+	"exports": "./index.js",
+	"types": "./index.d.ts",
+	"engines": {
+		"node": ">=14.16"
+	},
+	"license": "MIT",
+	"dependencies": {
+		"meow": "^11.0.0",
+		"square-and-multiply": "^2.0.0"
+	},
+	"devDependencies": {
+		"ava": "^5.2.0",
+		"eslint": "^8.34.0",
+		"eslint-config-airbnb-base": "^15.0.0",
+		"eslint-plugin-ava": "^14.0.0",
+		"eslint-plugin-import": "^2.27.5",
+		"eslint-plugin-unicorn": "^45.0.2",
+		"execa": "^7.0.0"
+	}
 }

test.js

@@ -1,7 +1,8 @@
-const test = require('ava');
-const execa = require('execa');
+// eslint-disable-next-line import/no-unresolved
+import test from 'ava';
+import {execa} from 'execa';
 
 test('outprint something', async t => {
-    const {stdout} = await execa('./cli.js', ['--version']);
-    t.true(stdout.length > 0);
+	const {stdout} = await execa('./cli.js', ['--version']);
+	t.true(stdout.length > 0);
 });