Require Node.js 8, add TypeScript definition (#1)

.editorconfig

@@ -7,6 +7,6 @@ charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 
-[{package.json,*.yml}]
+[*.yml]
 indent_style = space
 indent_size = 2

.gitattributes

@@ -1,2 +1 @@
-* text=auto
-*.js text eol=lf
+* text=auto eol=lf

.gitignore

@@ -1 +1,2 @@
 node_modules
+yarn.lock

.npmrc

@@ -0,0 +1 @@
+package-lock=false

.travis.yml

@@ -1,4 +1,4 @@
 language: node_js
 node_js:
-  - '6'
-  - '4'
+  - '10'
+  - '8'

index.d.ts

@@ -0,0 +1,6 @@
+/**
+ * Check if a string is a [scoped npm package name](https://docs.npmjs.com/misc/scope).
+ *
+ * @param input - The package name to check.
+ */
+export default function isScoped(input: string): boolean;

index.js

@@ -1,4 +1,7 @@
 'use strict';
 const scopedRegex = require('scoped-regex');
 
-module.exports = input => scopedRegex({exact: true}).test(input);
+const isScoped = input => scopedRegex({exact: true}).test(input);
+
+module.exports = isScoped;
+module.exports.default = isScoped;

index.test-d.ts

@@ -0,0 +1,4 @@
+import {expectType} from 'tsd-check';
+import isScoped from '.';
+
+expectType<boolean>(isScoped('is-scoped'));

package.json

@@ -1,38 +1,40 @@
 {
-  "name": "is-scoped",
-  "version": "1.0.0",
-  "description": "Check if a string is a scoped npm package name",
-  "license": "MIT",
-  "repository": "sindresorhus/is-scoped",
-  "author": {
-    "name": "Sindre Sorhus",
-    "email": "sindresorhus@gmail.com",
-    "url": "sindresorhus.com"
-  },
-  "engines": {
-    "node": ">=4"
-  },
-  "scripts": {
-    "test": "xo && ava"
-  },
-  "files": [
-    "index.js"
-  ],
-  "keywords": [
-    "scoped",
-    "npm",
-    "package",
-    "name",
-    "is",
-    "detect",
-    "validate",
-    "validation"
-  ],
-  "dependencies": {
-    "scoped-regex": "^1.0.0"
-  },
-  "devDependencies": {
-    "ava": "*",
-    "xo": "*"
-  }
+	"name": "is-scoped",
+	"version": "1.0.0",
+	"description": "Check if a string is a scoped npm package name",
+	"license": "MIT",
+	"repository": "sindresorhus/is-scoped",
+	"author": {
+		"name": "Sindre Sorhus",
+		"email": "sindresorhus@gmail.com",
+		"url": "sindresorhus.com"
+	},
+	"engines": {
+		"node": ">=8"
+	},
+	"scripts": {
+		"test": "xo && ava && tsd-check"
+	},
+	"files": [
+		"index.js",
+		"index.d.ts"
+	],
+	"keywords": [
+		"scoped",
+		"npm",
+		"package",
+		"name",
+		"is",
+		"detect",
+		"validate",
+		"validation"
+	],
+	"dependencies": {
+		"scoped-regex": "^1.0.0"
+	},
+	"devDependencies": {
+		"ava": "^1.3.1",
+		"tsd-check": "^0.3.0",
+		"xo": "^0.24.0"
+	}
 }

test.js

@@ -1,5 +1,5 @@
 import test from 'ava';
-import m from '.';
+import isScoped from '.';
 
 const matches = [
 	'@sindresorhus/df',
@@ -19,12 +19,12 @@ const nonMatches = [
 	'@foo89/_bar'
 ];
 
-test(t => {
-	for (const x of matches) {
-		t.true(m(x));
+test('isScoped', t => {
+	for (const match of matches) {
+		t.true(isScoped(match));
 	}
 
-	for (const x of nonMatches) {
-		t.false(m(x));
+	for (const nonMatch of nonMatches) {
+		t.false(isScoped(nonMatch));
 	}
 });