fix: add strict input check allowing only byte arrays as inputs (#87) (#88)

BREAKING CHANGE

From this release, only instances of Array with numeric values <= 255 are accepted
as inputs. No strings or anything else except shapes like `Buffer` or `Uint8Array`.

Author: runk

README.md

@@ -1,6 +1,6 @@
 # chardet
 
-*Chardet* is a character detection module written in pure JavaScript (TypeScript). Module uses occurrence analysis to determine the most probable encoding.
+_Chardet_ is a character detection module written in pure JavaScript (TypeScript). Module uses occurrence analysis to determine the most probable encoding.
 
 - Packed size is only **22 KB**
 - Works in all environments: Node / Browser / Native
@@ -42,10 +42,17 @@ Returned value is an array of objects sorted by confidence value in descending o
 ```javascript
 [
   { confidence: 90, name: 'UTF-8' },
-  { confidence: 20, name: 'windows-1252', lang: 'fr' }
+  { confidence: 20, name: 'windows-1252', lang: 'fr' },
 ];
 ```
 
+In browser, you can use [Uint8Array](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Uint8Array) instead of the `Buffer`:
+
+```javascript
+import chardet from 'chardet';
+chardet.analyse(new Uint8Array([0x68, 0x65, 0x6c, 0x6c, 0x6f]));
+```
+
 ## Working with large data sets
 
 Sometimes, when data set is huge and you want to optimize performance (with a tradeoff of less accuracy),
@@ -54,15 +61,15 @@ you can sample only the first N bytes of the buffer:
 ```javascript
 chardet
   .detectFile('/path/to/file', { sampleSize: 32 })
-  .then(encoding => console.log(encoding));
+  .then((encoding) => console.log(encoding));
 ```
 
 You can also specify where to begin reading from in the buffer:
 
 ```javascript
 chardet
   .detectFile('/path/to/file', { sampleSize: 32, offset: 128 })
-  .then(encoding => console.log(encoding));
+  .then((encoding) => console.log(encoding));
 ```
 
 ## Supported Encodings: