feat: Add support for Bun (#23)

* Add support for Bun

* docs: Add missing example

* Update `isBun` checker

Credits to @paradoxloop

* Remove obsolete tests

Author: xeho91

README.md

@@ -7,7 +7,7 @@ Check in which environment the code is running - browser/node.js/webworker/jsdom
 
 
 
-> [!NOTE]  
+> [!NOTE]
 > To help release v3.0.0, please try [v3.0.0-pre.0](https://github.com/flexdinesh/browser-or-node/releases/tag/3.0.0-pre.0) and let us know if you run into issues.
 
 ## Install
@@ -22,7 +22,7 @@ Import the checks and use it in your code. Works with both ESM and CJS imports.
 
 ```js
 import * as jsEnv from "browser-or-node";
-// import { isBrowser, isNode, isWebWorker, isJsDom, isDeno } from "browser-or-node";
+// import { isBrowser, isNode, isWebWorker, isJsDom, isDeno, isBun } from "browser-or-node";
 // const jsEnv = require("browser-or-node");
 
 if (jsEnv.isBrowser) {
@@ -44,6 +44,10 @@ if (jsEnv.isJsDom) {
 if (jsEnv.isDeno) {
   // do deno only stuff
 }
+
+if (jsEnv.isBun) {
+  // do bun only stuff
+}
 ```
 
 ## License

src/index.ts

@@ -31,4 +31,8 @@ const isDeno: boolean =
   // @ts-expect-error
   typeof Deno.version.deno !== "undefined";
 
-export { isBrowser, isWebWorker, isNode, isJsDom, isDeno };
+
+/** @see {@link https://bun.sh/guides/util/detect-bun} */
+const isBun = typeof process !== "undefined" && process.versions != null && process.versions.bun != null;
+
+export { isBrowser, isWebWorker, isNode, isJsDom, isDeno, isBun };