# engine

Requests automatic selection, standard JavaScript, or Pro processing. Inspect the actual result with getActiveTier.

Canonical: https://grid.syidax.com/docs/options/engine/

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## What does this API do?

Requests automatic selection, standard JavaScript, or Pro processing. Inspect the actual result with getActiveTier.

WASM acceleration requires Pro. The Standard JS engine is Free.

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## Exact input and result types

```typescript
engine: GridEngineMode
```

| Item | Value |
| --- | --- |
| JavaScript name | engine |
| HTML attribute | engine |
| Default | 'auto' |
| Input type | GridEngineMode |

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## Usage flow

Set this on a property of the Grid element. In HTML, you can also use the engine attribute. Pass arrays, objects, and callbacks through JavaScript, and use new arrays or objects when applying changes.

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## Read related types

- [GridEngineMode](https://grid.syidax.com/docs/types/GridEngineMode.md)

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## Feature explanations and examples

- [Choose a processing engine](https://grid.syidax.com/docs/features/wasm-acceleration.md) — Pro engines accelerate supported sorting, filtering, and aggregation. The actual execution path depends on the browser, package, license, and current feature combination.