Trilium/src/public/app/widgets/search_options/limit.js

import AbstractSearchOption from "./abstract_search_option.js";
import { t } from "../../services/i18n.js";

const TPL = `
<tr data-search-option-conf="limit">
    <td class="title-column">
        <span class="bx bx-stop"></span>
        ${t('limit.limit')}
    </td>
    <td>
        <input name="limit" class="form-control" type="number" min="1" step="1" />
    </td>
    <td class="button-column">
        <div class="dropdown help-dropdown">
            <span class="bx bx-help-circle icon-action" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"></span>
            <div class="dropdown-menu dropdown-menu-right p-4">
                ${t('limit.take_first_x_results')}
            </div> 
        </div>
    
        <span class="bx bx-x icon-action search-option-del"></span>
    </td>
</tr>`;

export default class Limit extends AbstractSearchOption {
    static get optionName() { return "limit" };
    static get attributeType() { return "label" };

    static async create(noteId) {
        await AbstractSearchOption.setAttribute(noteId, 'label', 'limit', '10');
    }

    doRender() {
        const $option = $(TPL);

        this.$limit = $option.find('input[name=limit]');
        this.$limit.on('change', () => this.update());
        this.$limit.on('input', () => this.update());
        this.$limit.val(this.note.getLabelValue('limit'));

        return $option;
    }

    async update() {
        const limit = this.$limit.val();

        await this.setAttribute('label', 'limit', limit);
    }
}