Output as ESM

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [6.x, 8.x, 10.x, 12.x]
+        node-version: [12.x, 14.x, 16.x]
 
     steps:
     - uses: actions/checkout@v1

package.json

@@ -2,23 +2,24 @@
   "name": "data-uri-to-buffer",
   "version": "3.0.1",
   "description": "Generate a Buffer instance from a Data URI string",
-  "main": "dist/src/index.js",
-  "types": "dist/src/index.d.ts",
+  "type": "module",
+  "main": "dist/index.js",
+  "types": "dist/index.d.ts",
   "files": [
-    "dist/src"
+    "dist",
+    "src"
   ],
   "scripts": {
     "build": "tsc",
-    "test": "mocha --reporter spec dist/test/*.js",
-    "test-lint": "eslint src --ext .js,.ts",
+    "test": "jest",
     "prepublishOnly": "npm run build"
   },
   "repository": {
     "type": "git",
     "url": "git://github.com/TooTallNate/node-data-uri-to-buffer.git"
   },
   "engines": {
-    "node": ">= 6"
+    "node": ">= 12"
   },
   "keywords": [
     "data",
@@ -38,18 +39,24 @@
   "homepage": "https://github.com/TooTallNate/node-data-uri-to-buffer",
   "devDependencies": {
     "@types/es6-promisify": "^5.0.0",
-    "@types/mocha": "^5.2.7",
+    "@types/mocha": "^9.0.0",
     "@types/node": "^10.5.3",
-    "@typescript-eslint/eslint-plugin": "1.6.0",
-    "@typescript-eslint/parser": "1.1.0",
-    "eslint": "5.16.0",
-    "eslint-config-airbnb": "17.1.0",
-    "eslint-config-prettier": "4.1.0",
-    "eslint-import-resolver-typescript": "1.1.1",
-    "eslint-plugin-import": "2.16.0",
-    "eslint-plugin-jsx-a11y": "6.2.1",
-    "eslint-plugin-react": "7.12.4",
-    "mocha": "^6.2.0",
-    "typescript": "^3.5.3"
+    "jest": "^27.2.2",
+    "ts-jest": "^27.0.5",
+    "typescript": "^4.4.3"
+  },
+  "jest": {
+    "preset": "ts-jest",
+    "globals": {
+      "ts-jest": {
+        "diagnostics": false,
+        "isolatedModules": true
+      }
+    },
+    "verbose": false,
+    "testEnvironment": "node",
+    "testMatch": [
+      "<rootDir>/test/**/*.test.ts"
+    ]
   }
 }

src/index.ts

@@ -1,12 +1,17 @@
+export interface MimeBuffer extends Buffer {
+	type: string;
+	typeFull: string;
+	charset: string;
+}
+
 /**
  * Returns a `Buffer` instance from the given data URI `uri`.
  *
  * @param {String} uri Data URI to turn into a Buffer instance
- * @return {Buffer} Buffer instance from Data URI
+ * @returns {Buffer} Buffer instance from Data URI
  * @api public
  */
-
-function dataUriToBuffer(uri: string): dataUriToBuffer.MimeBuffer {
+export function dataUriToBuffer(uri: string): MimeBuffer {
 	if (!/^data:/i.test(uri)) {
 		throw new TypeError(
 			'`uri` does not appear to be a Data URI (must begin with "data:")'
@@ -48,7 +53,7 @@ function dataUriToBuffer(uri: string): dataUriToBuffer.MimeBuffer {
 	// get the encoded data portion and decode URI-encoded chars
 	const encoding = base64 ? 'base64' : 'ascii';
 	const data = unescape(uri.substring(firstComma + 1));
-	const buffer = Buffer.from(data, encoding) as dataUriToBuffer.MimeBuffer;
+	const buffer = Buffer.from(data, encoding) as MimeBuffer;
 
 	// set `.type` and `.typeFull` properties to MIME type
 	buffer.type = type;
@@ -60,12 +65,4 @@ function dataUriToBuffer(uri: string): dataUriToBuffer.MimeBuffer {
 	return buffer;
 }
 
-namespace dataUriToBuffer { // eslint-disable-line no-redeclare
-	export interface MimeBuffer extends Buffer {
-		type: string;
-		typeFull: string;
-		charset: string;
-	}
-}
-
-export = dataUriToBuffer;
+export default dataUriToBuffer;

test/test.ts → test/data-uri-to-buffer.test.ts

@@ -1,7 +1,3 @@
-/**
- * Module dependencies.
- */
-
 import assert from 'assert';
 import dataUriToBuffer from '../src';
 

test/tsconfig.json

@@ -0,0 +1,4 @@
+{
+  "extends": "../tsconfig.json",
+  "include": ["**/*.ts"]
+}

tsconfig.json

@@ -1,17 +1,17 @@
 {
   "compilerOptions": {
     "strict": true,
-    "module": "CommonJS",
-    "target": "es2015",
+    "module": "es2020",
+    "target": "es2019",
     "esModuleInterop": true,
+    "moduleResolution": "node",
     "lib": ["esnext"],
     "outDir": "dist",
     "sourceMap": true,
     "declaration": true
   },
   "include": [
-    "src/**/*",
-    "test/**/*"
+    "src/**/*.ts",
   ],
   "exclude": [
     "node_modules"