blockly > Field > (constructor)
Field.(constructor)
Constructs a new instance of the Field class
Signature:
constructor(value: T | typeof Field.SKIP_SETUP, validator?: FieldValidator<T> | null, config?: FieldConfig);
Parameters
| Parameter | Type | Description |
|---|---|---|
| value | T | typeof Field.SKIP_SETUP | The initial value of the field. Also accepts Field.SKIP_SETUP if you wish to skip setup (only used by subclasses that want to handle configuration and setting the field value after their own constructors have run). |
| validator | FieldValidator<T> | null | (Optional) A function that is called to validate changes to the field's value. Takes in a value & returns a validated value, or null to abort the change. |
| config | FieldConfig | (Optional) A map of options used to configure the field. Refer to the individual field's documentation for a list of properties this parameter supports. |