# buildThemeToggleJs

**Kind:** Function

**Source:** [`atloria-monorepo/libs/pme-core/src/tools/theme.ts`](https://github.com/sherkety/atloria/blob/main/atloria-monorepo/libs/pme-core/src/tools/theme.ts#L209)

Build the client-side JS for theme toggling.
Accepts the default theme mode to use as initial value.

## Signature

```ts
function buildThemeToggleJs(defaultMode: ThemeMode): string
```

## Parameters

| Name | Type |
|---|---|
| `defaultMode` | `ThemeMode` |

**Returns:** `string`