diff --git a/examples/forms-and-validation/src/index.tsx b/examples/forms-and-validation/src/index.tsx
index e8a9bb4ea..4ac42a672 100644
--- a/examples/forms-and-validation/src/index.tsx
+++ b/examples/forms-and-validation/src/index.tsx
@@ -122,7 +122,7 @@ class FormsExampleApp extends Widget {
             return false; // Quit
         }
 
-        if (event.key === 'c' && event.ctrl === false) {
+        if (event.key === 'c' && event.ctrl !) {
             this.modal.show();
             return true;
         }
diff --git a/examples/showcase/src/index.tsx b/examples/showcase/src/index.tsx
index 444be6698..47a52a3e3 100644
--- a/examples/showcase/src/index.tsx
+++ b/examples/showcase/src/index.tsx
@@ -128,7 +128,7 @@ class ShowcaseApp extends Widget {
         if (event.key === 'q' || (event.ctrl && event.key === 'c')) return false;
 
         // Tab switching: 1-5
-        const num = parseInt(event.key);
+        const num = parseInt(event.key, 10);
         if (num >= 1 && num <= 5) {
             this.switchTab(num - 1);
             return true;
diff --git a/packages/ui/src/MultiSelect.ts b/packages/ui/src/MultiSelect.ts
index b4116418f..327e1eee2 100644
--- a/packages/ui/src/MultiSelect.ts
+++ b/packages/ui/src/MultiSelect.ts
@@ -30,7 +30,7 @@ export class MultiSelect extends Widget {
     }
 
     get selectedOptions(): MultiSelectOption[] {
-        return [...this._checked].sort().map(i => this._options[i]);
+        return [...this._checked].sort((a, b) => a - b).map(i => this._options[i]);
     }
     selectNext(): void { if (this._options.length === 0) return; let n = this._cursorIndex + 1; while (n < this._options.length && this._options[n].disabled) n++; if (n < this._options.length) { this._cursorIndex = n; this.markDirty(); } }
     selectPrev(): void { if (this._options.length === 0) return; let n = this._cursorIndex - 1; while (n >= 0 && this._options[n].disabled) n--; if (n >= 0) { this._cursorIndex = n; this.markDirty(); } }
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[];