diff --git a/packages/skeleton/src/lib/components/TreeView/TreeView.svelte b/packages/skeleton/src/lib/components/TreeView/TreeView.svelte
index e3bea0937..9e4b2dd98 100644
--- a/packages/skeleton/src/lib/components/TreeView/TreeView.svelte
+++ b/packages/skeleton/src/lib/components/TreeView/TreeView.svelte
@@ -53,10 +53,10 @@
 	 */
 	export function expandAll(): void {
 		const detailsElements = [...tree.querySelectorAll('details.tree-item')] as HTMLDetailsElement[];
-		detailsElements.forEach(details => {
-			if(!details.open) {
-				const summary : HTMLElement | null = details.querySelector('summary.tree-item-summary');
-				if(summary) summary.click();
+		detailsElements.forEach((details) => {
+			if (!details.open) {
+				const summary: HTMLElement | null = details.querySelector('summary.tree-item-summary');
+				if (summary) summary.click();
 			}
 		});
 	}
@@ -66,10 +66,10 @@
 	 */
 	export function collapseAll() {
 		const detailsElements = [...tree.querySelectorAll('details.tree-item')] as HTMLDetailsElement[];
-		detailsElements.forEach(details => {
-			if(details.open) {
-				const summary : HTMLElement | null = details.querySelector('summary.tree-item-summary');
-				if(summary) summary.click();
+		detailsElements.forEach((details) => {
+			if (details.open) {
+				const summary: HTMLElement | null = details.querySelector('summary.tree-item-summary');
+				if (summary) summary.click();
 			}
 		});
 	}
@@ -79,10 +79,10 @@
 	 */
 	export function selectAll() {
 		const detailsElements = [...tree.querySelectorAll('details.tree-item')] as HTMLDetailsElement[];
-		detailsElements.forEach(details => {
-			const input : HTMLInputElement | null = details.querySelector('input[type="checkbox"].tree-item-checkbox');
-			if(!input) return;
-			if(!input.checked) {
+		detailsElements.forEach((details) => {
+			const input: HTMLInputElement | null = details.querySelector('input[type="checkbox"].tree-item-checkbox');
+			if (!input) return;
+			if (!input.checked) {
 				// needs delay
 				setTimeout(() => {
 					input.click();
@@ -96,10 +96,10 @@
 	 */
 	export function deselectAll() {
 		const detailsElements = [...tree.querySelectorAll('details.tree-item')] as HTMLDetailsElement[];
-		detailsElements.forEach(details => {
-			const input : HTMLInputElement | null = details.querySelector('input[type="checkbox"].tree-item-checkbox');
-			if(!input) return;
-			if(input.checked){
+		detailsElements.forEach((details) => {
+			const input: HTMLInputElement | null = details.querySelector('input[type="checkbox"].tree-item-checkbox');
+			if (!input) return;
+			if (input.checked) {
 				// needs delay
 				setTimeout(() => {
 					input.click();
@@ -130,6 +130,14 @@
 	let tree: HTMLDivElement;
 </script>
 
-<div bind:this={tree} class="tree {classesBase}" data-testid="tree" role="tree" aria-multiselectable="true" aria-label={labelledby} aria-disabled={disabled}>
+<div
+	bind:this={tree}
+	class="tree {classesBase}"
+	data-testid="tree"
+	role="tree"
+	aria-multiselectable="true"
+	aria-label={labelledby}
+	aria-disabled={disabled}
+>
 	<slot />
 </div>