react

import { useCallback, useEffect, useState } from 'react';

function parseSearch(search) {
  const params = new URLSearchParams(search);
  const out = {};
  for (const [key, value] of params.entries()) out[key] = value;

import { useCallback, useEffect, useRef, useState } from 'react';

export function usePaginatedFetch(fetchPage, { pageSize = 20 } = {}) {
  const [items, setItems] = useState([]);
  const [loading, setLoading] = useState(false);
  const [error, setError] = useState(null);

import { useMemo } from "react";

export type SortDir = "asc" | "desc";
export interface SortConfig<T> {
  key: keyof T;
  dir: SortDir;

import React from 'react'
import ReactDOM from 'react-dom/client'
import { QueryClient, QueryClientProvider } from '@tanstack/react-query'
import { ReactQueryDevtools } from '@tanstack/react-query-devtools'
import App from './App'
import './index.css'

export type ErrorCode =
  | 'VALIDATION'
  | 'UNAUTHENTICATED'
  | 'FORBIDDEN'
  | 'NOT_FOUND'
  | 'CONFLICT'

import { useEffect, useState } from "react";

export function useDebouncedValue(value, delay = 300) {
  const [debounced, setDebounced] = useState(value);

  useEffect(() => {

const BASE_URL = "/api/search";

export async function searchProducts(query, { signal } = {}) {
  const params = new URLSearchParams({ q: query, limit: "10" });
  const res = await fetch(`${BASE_URL}?${params}`, {
    signal,

module MyApp
  class Application < Rails::Application
    config.load_defaults 6.1

    # API-only mode
    config.api_only = true

import { FixedSizeList as List } from 'react-window'
import AutoSizer from 'react-virtualized-auto-sizer'
import { Post } from '@/types'
import { PostCard } from './PostCard'

interface VirtualizedPostListProps {

export interface Todo {
  id: string;
  title: string;
  done: boolean;
  pending: boolean;
}

import { useEffect, useRef } from "react";

const FOCUSABLE = [
  "a[href]",
  "button:not([disabled])",
  "textarea:not([disabled])",

import { S3Client } from "@aws-sdk/client-s3";
import { createPresignedPost, PresignedPost } from "@aws-sdk/s3-presigned-post";
import { randomUUID } from "crypto";

const s3 = new S3Client({ region: process.env.AWS_REGION });
const BUCKET = process.env.UPLOAD_BUCKET!;