@modular-forms/react/dist/source/methods/hasFieldArray.js

The modular and type-safe form library for React

import { computed } from '@preact/signals-react';
import { getFieldArrayStore } from '../utils';
/**
 * Checks if the specified field array is included in the form.
 *
 * @param form The form of the field array.
 * @param name The name of the field array.
 * @param options The field array options.
 *
 * @returns Whether the field array is included.
 */
export function hasFieldArray(form, name, { shouldActive = true, shouldTouched = false, shouldDirty = false, shouldValid = false, } = {}) {
    return computed(() => {
        // Get store of specified field array
        const fieldArray = getFieldArrayStore(form, name);
        // If field array is not present, set listener to be notified when a new
        // field array is added
        if (!fieldArray) {
            form.internal.fieldArrayNames.value;
        }
        // Return whether field array is present and matches filter options
        return (!!fieldArray &&
            (!shouldActive || fieldArray.active.value) &&
            (!shouldTouched || fieldArray.touched.value) &&
            (!shouldDirty || fieldArray.dirty.value) &&
            (!shouldValid || !fieldArray.error.value));
    }).value;
}