# BeforeChangesEvent

typedef

Fired when entering the outermost [`enqueueChange`](module_engine_model_model-Model.md#function-enqueueChange:DEFAULT_BATCH) or [`change`](module_engine_model_model-Model.md#function-change) block.

[See source](https://github.com/ckeditor/ckeditor5/blob/master/packages/ckeditor5-engine/src/model/model.ts#L1205)

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## Properties

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### `args: [ ]`

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### `name: '_beforeChanges'`

#### Value

`object`

## Fired by

* [Model#\_beforeChanges](module_engine_model_model-Model.md#event-_beforeChanges)

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Full index of the CKEditor 5 API reference: [llms.txt](llms.txt)