blockly > FieldVariableValidator
FieldVariableValidator type
A function that is called to validate changes to the field's value before they are set.
Signature:
export type FieldVariableValidator = FieldDropdownValidator;
References: FieldDropdownValidator
Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.
Last updated 2024-09-18 UTC.
[null,null,["Last updated 2024-09-18 UTC."],[[["`FieldVariableValidator` is a type alias for `FieldDropdownValidator`, used to validate changes to a field's value."],["It is a function that gets called before a new value is set to a field to make sure the value is valid."],["You can learn more about field validators by visiting the documentation for `FieldDropdownValidator`."]]],["The core content defines `FieldVariableValidator` as a type alias for `FieldDropdownValidator`. This function serves to validate changes to a field's value before the changes are applied. It acts as a validator, ensuring that proposed value changes meet specified criteria. The `FieldVariableValidator` function will be called before the field value is actually updated, offering a mechanism for controlling field value changes.\n"]]