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blockly > fieldRegistry > register
fieldRegistry.register() function
Registers a field type. fieldRegistry.fromJson uses this registry to find the appropriate field type.
Signature:
export declare function register(type: string, fieldClass: RegistrableField): void;
Parameters
| Parameter |
Type |
Description |
| type |
string |
The field type name as used in the JSON definition. |
| fieldClass |
RegistrableField |
The field class containing a fromJson function that can construct an instance of the field. |
Returns:
void
Exceptions
{Error} if the type name is empty, the field is already registered, or the fieldClass is not an object containing a fromJson function.
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Last updated 2024-09-18 UTC.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2024-09-18 UTC."],[],["The `fieldRegistry.register()` function registers a field type for use with `fieldRegistry.fromJson`. It takes two parameters: `type` (a string representing the field type name) and `fieldClass` (a class with a `fromJson` function for constructing field instances). It returns void. The function throws an error if the type is empty, the field is already registered, or the class is invalid. It enables the system to find the appropriate field type during JSON parsing.\n"]]
