onChange
Event handler called when a field loses focus.
Specification
Event handler called on each field value change.
Definition
Parameters
Parameter name | Type | Description |
|
| Native event reference. |
|
| The previous value of a field. |
|
| The next value of a field. |
|
| Props of the current field. |
|
| Reference to all fields of a form. |
|
| Form component reference. |
Default behavior
By default, onChange
behaves as a callback method, allowing you to base your external logic based on the field updates. This doesn't change the controlled flow of the field.
The same onChange method can be used as the handler when working with controlled fields. In that case it is responsible for updating the data source used for setting a value on the field.
pageControlled fieldsExample
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