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/examples/pomodoro-timer/src/index.tsx b/examples/pomodoro-timer/src/index.tsx
index cad749f32..6444f948d 100644
--- a/examples/pomodoro-timer/src/index.tsx
+++ b/examples/pomodoro-timer/src/index.tsx
@@ -182,7 +182,7 @@ class GradientProgressBar extends Widget {
 
         const attrs = styleToCellAttrs(this._style);
 
-        const label = this._showLabel ? ` ${Math.round(this._value * 100)}%` : '';
+        const label = this._showLabel ? ` ${Math.round(this._value * 100 + Number.EPSILON)}%` : '';
         const barWidth = Math.max(0, width - label.length);
         const filled = this._value <= 0 ? 0 : Math.round(barWidth * this._value);
         const empty = barWidth - filled;
diff --git a/examples/todo-app/src/index.ts b/examples/todo-app/src/index.ts
index d26035d3c..d4cf9b550 100644
--- a/examples/todo-app/src/index.ts
+++ b/examples/todo-app/src/index.ts
@@ -104,7 +104,7 @@ class CustomMultiProgress extends (MultiProgressClass as any) {
             const value = Math.max(0, Math.min(1, item.value));
             const filled = Math.round(barWidth * value);
 
-            const pct = Math.round(value * 100);
+            const pct = Math.round(value * 100 + Number.EPSILON);
             const percentStr = ` ${pct}% `;
             const showPct = barWidth >= percentStr.length;
             const labelStart = showPct ? Math.floor((barWidth - percentStr.length) / 2) : -1;
diff --git a/packages/ui/src/TreeSelect.ts b/packages/ui/src/TreeSelect.ts
index 652ede256..2c3a59a97 100644
--- a/packages/ui/src/TreeSelect.ts
+++ b/packages/ui/src/TreeSelect.ts
@@ -182,7 +182,7 @@ function _pathsEqual(a: number[], b: number[]): boolean {
 
 function _valuesEqual(a: string[], b: string[]): boolean {
     if (a.length !== b.length) return false;
-    const sortedA = [...a].sort();
+    const sortedA = [...a].sort((a, b) => a - b);
     const sortedB = [...b].sort();
     for (let i = 0; i < sortedA.length; i++) {
         if (sortedA[i] !== sortedB[i]) return false;