Add isEmptyObject() method

Author: WezomDev

src/is-empty-object.test.ts

@@ -0,0 +1,40 @@
+// -----------------------------------------------------------------------------
+// Deps
+// -----------------------------------------------------------------------------
+
+import { isEmptyObject } from './is-empty-object';
+
+// -----------------------------------------------------------------------------
+// Tests
+// -----------------------------------------------------------------------------
+
+const testCases: {
+	parameters: Parameters<typeof isEmptyObject>;
+	result: ReturnType<typeof isEmptyObject>;
+}[] = [
+	{
+		parameters: [{}],
+		result: true
+	},
+	{
+		parameters: [{ key: 'value' }],
+		result: false
+	},
+	{
+		parameters: [new Date()],
+		result: true
+	},
+	{
+		parameters: [new RegExp('x')],
+		result: true
+	}
+];
+
+describe('isEmptyObject tool', () => {
+	testCases.forEach(({ parameters, result }, i) => {
+		test(`test #${i + 1}: ${parameters.join(', ')}`, () => {
+			const bool = isEmptyObject(...parameters);
+			expect(bool).toStrictEqual(result);
+		});
+	});
+});

src/is-empty-object.ts

@@ -0,0 +1,17 @@
+// -----------------------------------------------------------------------------
+// Deps
+// -----------------------------------------------------------------------------
+
+import { isPlainObject } from './is-plain-object';
+
+// -----------------------------------------------------------------------------
+// Helper
+// -----------------------------------------------------------------------------
+
+/**
+ * @param sample
+ * @return {boolean}
+ */
+export function isEmptyObject(sample: any) {
+	return isPlainObject(sample) && Object.keys(sample).length === 0;
+}