Require Node.js 12 and move to ESM

Author: sindresorhus

.github/workflows/main.yml

@@ -12,11 +12,9 @@ jobs:
         node-version:
           - 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.d.ts

@@ -1,19 +1,17 @@
-declare namespace indentString {
-	interface Options {
-		/**
-		The string to use for the indent.
-
-		@default ' '
-		*/
-		readonly indent?: string;
-
-		/**
-		Also indent empty lines.
-
-		@default false
-		*/
-		readonly includeEmptyLines?: boolean;
-	}
+export interface Options {
+	/**
+	The string to use for the indent.
+
+	@default ' '
+	*/
+	readonly indent?: string;
+
+	/**
+	Also indent empty lines.
+
+	@default false
+	*/
+	readonly includeEmptyLines?: boolean;
 }
 
 /**
@@ -24,7 +22,7 @@ Indent each line in a string.
 
 @example
 ```
-import indentString = require('indent-string');
+import indentString from 'indent-string';
 
 indentString('Unicorns\nRainbows', 4);
 //=> '    Unicorns\n    Rainbows'
@@ -33,10 +31,8 @@ indentString('Unicorns\nRainbows', 4, {indent: '♥'});
 //=> '♥♥♥♥Unicorns\n♥♥♥♥Rainbows'
 ```
 */
-declare function indentString(
+export default function indentString(
 	string: string,
 	count?: number,
-	options?: indentString.Options
+	options?: Options
 ): string;
-
-export = indentString;

index.js

@@ -1,11 +1,8 @@
-'use strict';
-
-module.exports = (string, count = 1, options) => {
-	options = {
-		indent: ' ',
-		includeEmptyLines: false,
-		...options
-	};
+export default function indentString(string, count = 1, options = {}) {
+	const {
+		indent = ' ',
+		includeEmptyLines = false
+	} = options;
 
 	if (typeof string !== 'string') {
 		throw new TypeError(
@@ -25,17 +22,17 @@ module.exports = (string, count = 1, options) => {
 		);
 	}
 
-	if (typeof options.indent !== 'string') {
+	if (typeof indent !== 'string') {
 		throw new TypeError(
-			`Expected \`options.indent\` to be a \`string\`, got \`${typeof options.indent}\``
+			`Expected \`options.indent\` to be a \`string\`, got \`${typeof indent}\``
 		);
 	}
 
 	if (count === 0) {
 		return string;
 	}
 
-	const regex = options.includeEmptyLines ? /^/gm : /^(?!\s*$)/gm;
+	const regex = includeEmptyLines ? /^/gm : /^(?!\s*$)/gm;
 
-	return string.replace(regex, options.indent.repeat(count));
-};
+	return string.replace(regex, indent.repeat(count));
+}

index.test-d.ts

@@ -1,5 +1,5 @@
 import {expectType} from 'tsd';
-import indentString = require('.');
+import indentString from './index.js';
 
 expectType<string>(indentString('Unicorns\nRainbows'));
 expectType<string>(indentString('Unicorns\nRainbows', 4));

license

@@ -1,6 +1,6 @@
 MIT License
 
-Copyright (c) Sindre Sorhus <[email protected]> (sindresorhus.com)
+Copyright (c) Sindre Sorhus <[email protected]> (https://sindresorhus.com)
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 

package.json

@@ -4,13 +4,16 @@
 	"description": "Indent each line in a string",
 	"license": "MIT",
 	"repository": "sindresorhus/indent-string",
+	"funding": "https://github.com/sponsors/sindresorhus",
 	"author": {
 		"name": "Sindre Sorhus",
 		"email": "[email protected]",
-		"url": "sindresorhus.com"
+		"url": "https://sindresorhus.com"
 	},
+	"type": "module",
+	"exports": "./index.js",
 	"engines": {
-		"node": ">=8"
+		"node": ">=12"
 	},
 	"scripts": {
 		"test": "xo && ava && tsd"
@@ -30,8 +33,8 @@
 		"every"
 	],
 	"devDependencies": {
-		"ava": "^1.4.1",
-		"tsd": "^0.7.2",
-		"xo": "^0.24.0"
+		"ava": "^3.15.0",
+		"tsd": "^0.14.0",
+		"xo": "^0.38.2"
 	}
 }

readme.md

@@ -2,18 +2,16 @@
 
 > Indent each line in a string
 
-
 ## Install
 
 ```
 $ npm install indent-string
 ```
 
-
 ## Usage
 
 ```js
-const indentString = require('indent-string');
+import indentString from 'indent-string';
 
 indentString('Unicorns\nRainbows', 4);
 //=> '    Unicorns\n    Rainbows'
@@ -22,7 +20,6 @@ indentString('Unicorns\nRainbows', 4, {indent: '♥'});
 //=> '♥♥♥♥Unicorns\n♥♥♥♥Rainbows'
 ```
 
-
 ## API
 
 ### indentString(string, count?, options?)
@@ -35,7 +32,7 @@ The string to indent.
 
 #### count
 
-Type: `number`<br>
+Type: `number`\
 Default: `1`
 
 How many times you want `options.indent` repeated.
@@ -46,25 +43,23 @@ Type: `object`
 
 ##### indent
 
-Type: `string`<br>
+Type: `string`\
 Default: `' '`
 
 The string to use for the indent.
 
 ##### includeEmptyLines
 
-Type: `boolean`<br>
+Type: `boolean`\
 Default: `false`
 
 Also indent empty lines.
 
-
 ## Related
 
 - [indent-string-cli](https://github.com/sindresorhus/indent-string-cli) - CLI for this module
 - [strip-indent](https://github.com/sindresorhus/strip-indent) - Strip leading whitespace from every line in a string
 
-
 ---
 
 <div align="center">

test.js

@@ -1,32 +1,42 @@
 import test from 'ava';
-import indentString from '.';
+import indentString from './index.js';
 
 test('throw if input is not a string', t => {
 	t.throws(() => {
 		indentString(5);
-	}, 'Expected `input` to be a `string`, got `number`');
+	}, {
+		message: 'Expected `input` to be a `string`, got `number`'
+	});
 
 	t.throws(() => {
 		indentString(true);
-	}, 'Expected `input` to be a `string`, got `boolean`');
+	}, {
+		message: 'Expected `input` to be a `string`, got `boolean`'
+	});
 });
 
 test('throw if count is not a number', t => {
 	t.throws(() => {
 		indentString('foo', 'bar');
-	}, 'Expected `count` to be a `number`, got `string`');
+	}, {
+		message: 'Expected `count` to be a `number`, got `string`'
+	});
 });
 
 test('throw if count is a negative', t => {
 	t.throws(() => {
 		indentString('foo', -1);
-	}, 'Expected `count` to be at least 0, got `-1`');
+	}, {
+		message: 'Expected `count` to be at least 0, got `-1`'
+	});
 });
 
 test('throw if indent is not a string', t => {
 	t.throws(() => {
 		indentString('foo', 1, {indent: 1});
-	}, 'Expected `options.indent` to be a `string`, got `number`');
+	}, {
+		message: 'Expected `options.indent` to be a `string`, got `number`'
+	});
 });
 
 test('indent each line in a string', t => {