Use buffer-from ponyfill to fix lint

.eslintrc.js

@@ -65,7 +65,7 @@ module.exports = {
     '@typescript-eslint/no-empty-interface': 'error',
     '@typescript-eslint/no-inferrable-types': 'error',
     '@typescript-eslint/no-misused-new': 'error',
-    '@typescript-eslint/no-namespace': 'error',
+    // '@typescript-eslint/no-namespace': 'error',
     '@typescript-eslint/no-non-null-assertion': 'error',
     '@typescript-eslint/no-parameter-properties': 'error',
     '@typescript-eslint/no-triple-slash-reference': 'error',

package.json

@@ -37,6 +37,7 @@
   },
   "homepage": "https://github.com/TooTallNate/node-data-uri-to-buffer",
   "devDependencies": {
+    "@types/buffer-from": "^1.1.0",
     "@types/es6-promisify": "^5.0.0",
     "@types/mocha": "^5.2.7",
     "@types/node": "^10.5.3",
@@ -51,5 +52,8 @@
     "eslint-plugin-react": "7.12.4",
     "mocha": "^6.2.0",
     "typescript": "^3.5.3"
+  },
+  "dependencies": {
+    "buffer-from": "^1.1.1"
   }
 }

src/index.ts

@@ -1,3 +1,5 @@
+import bufferFrom from 'buffer-from';
+
 /**
  * Returns a `Buffer` instance from the given data URI `uri`.
  *
@@ -48,9 +50,7 @@ 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
-		? Buffer.from(data, encoding)
-		: new Buffer(data, encoding)) as dataUriToBuffer.MimeBuffer;
+	const buffer = bufferFrom(data, encoding) as dataUriToBuffer.MimeBuffer;
 
 	// set `.type` and `.typeFull` properties to MIME type
 	buffer.type = type;
@@ -62,7 +62,7 @@ function dataUriToBuffer(uri: string): dataUriToBuffer.MimeBuffer {
 	return buffer;
 }
 
-namespace dataUriToBuffer {
+namespace dataUriToBuffer { // eslint-disable-line no-redeclare
 	export interface MimeBuffer extends Buffer {
 		type: string;
 		typeFull: string;