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

The modular and type-safe form library for React

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