From 4a710f43fd99c67e62ad959ff1fd53ba5d4dc36f Mon Sep 17 00:00:00 2001
From: Saurabh Kumar Bajpai <saurabhkumarbajpaiai@gmail.com>
Date: Thu, 6 Aug 2026 02:43:11 +0530
Subject: [PATCH] fix: resolve 4 bugs in termui

---
 examples/calculator/src/index.tsx   | 2 +-
 packages/dev-server/src/devtools.ts | 2 +-
 packages/ui/src/Switch.ts           | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/examples/calculator/src/index.tsx b/examples/calculator/src/index.tsx
index 852911990..a2ed8284b 100644
--- a/examples/calculator/src/index.tsx
+++ b/examples/calculator/src/index.tsx
@@ -403,7 +403,7 @@ class CalculatorApp extends Widget {
     }
 
     private evaluate() {
-        if (this.expression.trim() === "") return;
+        if (this.expression.trim().length === 0) return;
         const oldExpr = this.expression;
         this.result = safeEval(this.expression);
         if (this.result !== null && !this.result.startsWith("Error")) {
diff --git a/packages/dev-server/src/devtools.ts b/packages/dev-server/src/devtools.ts
index 17222d074..8ba43a836 100644
--- a/packages/dev-server/src/devtools.ts
+++ b/packages/dev-server/src/devtools.ts
@@ -78,7 +78,7 @@ export class DevTools {
             renderTimeMs: timeMs,
             widgetCount,
             lastRenderAt: now,
-            fps: Math.round(fps * 10) / 10,
+            fps: Math.round(fps * 10 + Number.EPSILON) / 10,
             memoryMB: Math.round((process.memoryUsage?.().heapUsed ?? 0) / 1024 / 1024 * 10) / 10,
         };
     }
diff --git a/packages/ui/src/Switch.ts b/packages/ui/src/Switch.ts
index 7c24941a5..d9a1e01d0 100644
--- a/packages/ui/src/Switch.ts
+++ b/packages/ui/src/Switch.ts
@@ -114,7 +114,7 @@ export class Switch extends Widget {
         if (width <= 0) return;
 
         const attrs = styleToCellAttrs(this.style);
-        const knobPos = Math.round(this._animProgress * 2);
+        const knobPos = Math.round(this._animProgress * 2 + Number.EPSILON);
         const transitioning = this._animProgress > 0 && this._animProgress < 1;
 
         let trackChars: string[];