Function: extractEmitsFromComponentCtor()

function extractEmitsFromComponentCtor<T>(
  component: T,
): ExtractEmitValidatorsFromComponent<T>;

Extracts emit validators from a Vue component's emits definition. Supports both array format (event names only) and object format (with validators).

Type Parameters

Type Parameter	Description
T extends { emits?: any; }	The component type

Parameters

Parameter	Type	Description
component	T	A Vue component with an emits definition

Returns

ExtractEmitValidatorsFromComponent<T>

An EmitValidators object with event names and their validators

Example

const MyComponent = defineComponent({
  emits: {
    "update:modelValue": (val: string) => typeof val === "string",
    close: () => true,
  },
});

const validators = extractEmitsFromComponentCtor(MyComponent);
// validators['update:modelValue'](123) // false
// validators['update:modelValue']('hello') // true