diff --git a/extensions/typescript-language-features/src/features/completions.ts b/extensions/typescript-language-features/src/features/completions.ts
index 70f61d61a13..5d9a26b0f72 100644
--- a/extensions/typescript-language-features/src/features/completions.ts
+++ b/extensions/typescript-language-features/src/features/completions.ts
@@ -64,9 +64,7 @@ class MyCompletionItem extends vscode.CompletionItem {
 			this.sortText = tsEntry.sortText;
 		}
 
-		if (tsEntry.isRecommended) {
-			this.preselect = true;
-		}
+		this.preselect = tsEntry.isRecommended;
 
 		this.position = position;
 		this.useCodeSnippet = completionContext.useCodeSnippetsOnMethodSuggest && (this.kind === vscode.CompletionItemKind.Function || this.kind === vscode.CompletionItemKind.Method);
@@ -103,8 +101,8 @@ class MyCompletionItem extends vscode.CompletionItem {
 		}
 
 		if (tsEntry.kindModifiers) {
-			const kindModifiers = new Set(tsEntry.kindModifiers.split(/,|\s+/g));
-			if (kindModifiers.has(PConst.KindModifiers.optional)) {
+			const kindModifiers = tsEntry.kindModifiers.split(/,|\s+/g);
+			if (kindModifiers.includes(PConst.KindModifiers.optional)) {
 				if (!this.insertText) {
 					this.insertText = this.label;
 				}
@@ -115,13 +113,13 @@ class MyCompletionItem extends vscode.CompletionItem {
 				this.label += '?';
 			}
 
-			if (kindModifiers.has(PConst.KindModifiers.color)) {
+			if (kindModifiers.includes(PConst.KindModifiers.color)) {
 				this.kind = vscode.CompletionItemKind.Color;
 			}
 
 			if (tsEntry.kind === PConst.Kind.script) {
 				for (const extModifier of PConst.KindModifiers.fileExtensionKindModifiers) {
-					if (kindModifiers.has(extModifier)) {
+					if (kindModifiers.includes(extModifier)) {
 						if (tsEntry.name.toLowerCase().endsWith(extModifier)) {
 							this.detail = tsEntry.name;
 						} else {
@@ -132,6 +130,7 @@ class MyCompletionItem extends vscode.CompletionItem {
 				}
 			}
 		}
+
 		this.resolveRange();
 	}
 
@@ -155,6 +154,7 @@ class MyCompletionItem extends vscode.CompletionItem {
 		if (insertText?.startsWith('this.')) {
 			return undefined;
 		}
+
 		// Handle the case:
 		// ```
 		// const xyz = { 'ab c': 1 };