Files
gemini-nexus/.agent/skills/vercel-react-best-practices/rules/rendering-conditional-render.md
AngeloooooandDraculabo 8ed4593f73 Refactor Gemini model display: filter old versions, group low/high pкo, and improve naming (#114)
* Refactor Gemini model display: filter old versions, group low/high pro, and improve naming

* Fix potential negative minutes and refine Gemini 3 Pro grouping logic based on PR feedback

* The account change process has been sped up

* Address PR review: enhance error message and parameterize polling interval in process handler

* Address PR review: fix potential race condition in database backup logic

* fix: prevent renderer white screen and harden sentry gating

* feat:  localize model labels

* chore: enable hoisted node-linker

* chore: ignore .agent/.claude/.codex in prettier

---------

Co-authored-by: Draculabo <[email protected]>
2026-02-19 19:37:30 +08:00

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Markdown

---
title: Use Explicit Conditional Rendering
impact: LOW
impactDescription: prevents rendering 0 or NaN
tags: rendering, conditional, jsx, falsy-values
---
## 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>
```