Merge pull request #497 from fatihcure-jf/task/496-domtokenlist-tostr…

…ing-method #496@minor: Add toString method to DOMTokenList.
capricorn86 · Jun 8, 2022 · 6be545e · 6be545e
2 parents 31368b7 + 2ab650e
commit 6be545e
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Showing 4 changed files with 17 additions and 2 deletions.
diff --git a/package-lock.json b/package-lock.json
diff --git a/packages/happy-dom/src/dom-token-list/DOMTokenList.ts b/packages/happy-dom/src/dom-token-list/DOMTokenList.ts
@@ -212,4 +212,11 @@ export default class DOMTokenList implements IDOMTokenList {
 
 		(<number>this.length) = list.length;
 	}
+
+	/**
+	 * Returns DOMTokenList value.
+	 */
+	public toString(): string {
+		return this.value || '';
+	}
 }
diff --git a/packages/happy-dom/src/dom-token-list/IDOMTokenList.ts b/packages/happy-dom/src/dom-token-list/IDOMTokenList.ts
@@ -16,4 +16,5 @@ export default interface IDOMTokenList {
 	entries(): IterableIterator<[number, string]>;
 	forEach(callback: (currentValue, currentIndex, listObj) => void, thisArg?: this): void;
 	keys(): IterableIterator<number>;
+	toString(): string;
 }
diff --git a/packages/happy-dom/test/dom-token-list/DOMTokenList.test.ts b/packages/happy-dom/test/dom-token-list/DOMTokenList.test.ts
@@ -203,4 +203,11 @@ describe('DOMTokenList', () => {
 			expect(Array.from(classList.keys())).toEqual([0, 1, 2]);
 		});
 	});
+
+	describe('toString()', () => {
+		it('Returns list value as string', () => {
+			element.className = 'class1 class2  class3';
+			expect(element.classList.toString()).toEqual('class1 class2  class3');
+		});
+	});
 });