@semantic-ui/utils - npm Package Compare versions

Comparing version 0.0.16 to 0.0.17

package.json

 {
   "name": "@semantic-ui/utils",
-  "version": "0.0.16",
   "type": "module",
@@ -11,3 +10,4 @@ "main": "src/utils.js",
     "vitest": "^1.5.2"
-  }
+  },
+  "version": "0.0.17"
 }

README.md

@@ -60,2 +60,3 @@ # @semantic-ui/utils
 - `isEmpty(x)` Checks if the value is empty like {}
+- `isClassInstance(x)` - Checks if the value is an instance of a custom class
 
@@ -62,0 +63,0 @@ ### Date

src/utils.js

@@ -136,2 +136,34 @@ /*
 
+export const isClassInstance = (obj) => {
+  if (obj === null || typeof obj !== 'object') {
+    return false;
+  }
+
+  const proto = Object.getPrototypeOf(obj);
+  const constructorName = proto.constructor.name;
+
+  const builtInTypes = [
+    'Object',
+    'Array',
+    'Date',
+    'RegExp',
+    'Map',
+    'Set',
+    'Error',
+    'Uint8Array',
+    'Int8Array',
+    'Uint16Array',
+    'Int16Array',
+    'Uint32Array',
+    'Int32Array',
+    'Float32Array',
+    'Float64Array',
+    'BigInt64Array',
+    'BigUint64Array',
+    'NodeList',
+  ];
+
+  return !builtInTypes.includes(constructorName);
+};
+
 /*-------------------
@@ -692,7 +724,7 @@ Date
   let copy;
-  /*if (src.nodeType && 'cloneNode' in src) {
+  if (src.nodeType && 'cloneNode' in src) {
     copy = src.cloneNode(true);
     seen.set(src, copy);
   }
-  else */if (src instanceof Date) {
+  else if (src instanceof Date) {
     // Date
@@ -699,0 +731,0 @@ copy = new Date(src.getTime());

test/utils.test.js

@@ -30,2 +30,3 @@ import { describe, expect, it, vi } from 'vitest';
   isFunction,
+  isClassInstance,
   isNumber,
@@ -220,2 +221,60 @@ isObject,
   });
+
+  describe('isClassInstance', () => {
+    it('should return true for a custom class instance', () => {
+      class MyClass {}
+      const instance = new MyClass();
+      expect(isClassInstance(instance)).toBe(true);
+    });
+
+    it('should return false for a plain object', () => {
+      const obj = {};
+      expect(isClassInstance(obj)).toBe(false);
+    });
+
+    it('should return false for primitive values', () => {
+      expect(isClassInstance(null)).toBe(false);
+      expect(isClassInstance(undefined)).toBe(false);
+      expect(isClassInstance(42)).toBe(false);
+      expect(isClassInstance('hello')).toBe(false);
+      expect(isClassInstance(true)).toBe(false);
+    });
+
+    it('should return false for an array', () => {
+      expect(isClassInstance([])).toBe(false);
+    });
+
+    it('should return false for a Date object', () => {
+      expect(isClassInstance(new Date())).toBe(false);
+    });
+
+    it('should return false for a regular expression', () => {
+      expect(isClassInstance(/regex/)).toBe(false);
+    });
+
+    it('should return false for a Map object', () => {
+      expect(isClassInstance(new Map())).toBe(false);
+    });
+
+    it('should return false for a Set object', () => {
+      expect(isClassInstance(new Set())).toBe(false);
+    });
+
+    it('should return false for an Error object', () => {
+      expect(isClassInstance(new Error())).toBe(false);
+    });
+
+    it('should return false for a Uint8Array', () => {
+      expect(isClassInstance(new Uint8Array())).toBe(false);
+    });
+
+    // Add more test cases for other built-in object types as needed
+
+    it('should return false for functions', () => {
+      expect(isClassInstance(() => {})).toBe(false);
+      function testFunction() {}
+      expect(isClassInstance(testFunction)).toBe(false);
+    });
+  });
+
   describe('groupBy', () => {
@@ -222,0 +281,0 @@ it('should group objects by a simple property', () => {

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

67490

increased by3.81%

Lines of code

1958

increased by3.93%

Number of lines in readme file

103

increased by0.98%

No dependency changes