Rendering Conditional Render

---
name: rendering-conditional-render
description: Use Explicit Conditional Rendering. Use when you need help with rendering conditional render.
license: CC-BY-NC-SA-4.0
metadata:
  risk: unknown
  source: community
  kind: mode
  category: rules
---

## Use Explicit Conditional Rendering

Use explicit ternary operators (`? :`) instead of `&&` for conditional rendering when the condition can be `0`, `NaN`, or other falsy values that render.

**Incorrect (renders "0" when count is 0):**

```tsx
function Badge({ count }: { count: number }) {
  return <div>{count && <span className="badge">{count}</span>}</div>;
}

// When count = 0, renders: <div>0</div>
// When count = 5, renders: <div><span class="badge">5</span></div>
```

**Correct (renders nothing when count is 0):**

```tsx
function Badge({ count }: { count: number }) {
  return <div>{count > 0 ? <span className="badge">{count}</span> : null}</div>;
}

// When count = 0, renders: <div></div>
// When count = 5, renders: <div><span class="badge">5</span></div>
```