is-plain-obj - npm Package Compare versions

Comparing version 4.0.0 to 4.1.0

index.d.ts

@@ -9,2 +9,3 @@ /**
 import isPlainObject from 'is-plain-obj';
+import {runInNewContext} from 'node:vm';
 
@@ -20,2 +21,6 @@ isPlainObject({foo: 'bar'});
 
+// This works across realms
+isPlainObject(runInNewContext('({})'));
+//=> true
+
 isPlainObject([1, 2, 3]);
@@ -27,4 +32,7 @@ //=> false
 //=> false
+
+isPlainObject(Math);
+//=> false
 ```
 */
-export default function isPlainObject<Value>(value: unknown): value is Record<string | number | symbol, Value>;
+export default function isPlainObject<Value>(value: unknown): value is Record<PropertyKey, Value>;

index.js

 export default function isPlainObject(value) {
-	if (Object.prototype.toString.call(value) !== '[object Object]') {
+	if (typeof value !== 'object' || value === null) {
 		return false;
@@ -7,3 +7,3 @@ }
 	const prototype = Object.getPrototypeOf(value);
-	return prototype === null || prototype === Object.prototype;
+	return (prototype === null || prototype === Object.prototype || Object.getPrototypeOf(prototype) === null) && !(Symbol.toStringTag in value) && !(Symbol.iterator in value);
 }

package.json

 {
 	"name": "is-plain-obj",
-	"version": "4.0.0",
+	"version": "4.1.0",
 	"description": "Check if a value is a plain object",
@@ -5,0 +5,0 @@ "license": "MIT",

readme.md

@@ -17,2 +17,3 @@ # is-plain-obj
 import isPlainObject from 'is-plain-obj';
+import {runInNewContext} from 'node:vm';
 
@@ -28,2 +29,6 @@ isPlainObject({foo: 'bar'});
 
+// This works across realms
+isPlainObject(runInNewContext('({})'));
+//=> true
+
 isPlainObject([1, 2, 3]);
@@ -35,2 +40,5 @@ //=> false
 //=> false
+
+isPlainObject(Math);
+//=> false
 ```
@@ -37,0 +45,0 @@

No alert changes

Improved metrics

Total package byte prevSize

4080

increased by10.54%

Lines of code

33

increased by22.22%

Number of lines in readme file

59

increased by15.69%

No dependency changes