javascript

class DeadlineError extends Error {
  constructor(message = 'request deadline exceeded') {
    super(message);
    this.name = 'DeadlineError';
    this.code = 'DEADLINE_EXCEEDED';
  }

CREATE TABLE idempotency_keys (
    id              BIGSERIAL PRIMARY KEY,
    idempotency_key TEXT        NOT NULL,
    request_path    TEXT        NOT NULL,
    request_fingerprint TEXT    NOT NULL,
    status          TEXT        NOT NULL DEFAULT 'in_progress',

import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  static targets = ["source"]

  async copy() {

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 { StreamActions } from "@hotwired/turbo"

StreamActions.highlight = function () {
  const className = this.getAttribute("data-highlight-class") || "flash-highlight"
  const duration = parseInt(this.getAttribute("data-highlight-duration"), 10) || 1500

class TokenBucket {
  constructor(capacity, refillPerSecond) {
    this.capacity = capacity;
    this.refillPerMs = refillPerSecond / 1000;
    this.tokens = capacity;
    this.lastRefill = Date.now();

const { WebSocketServer } = require('ws');
const crypto = require('crypto');

const wss = new WebSocketServer({ port: 8080 });

function broadcast(payload, except) {

const jwt = require('jsonwebtoken');

const ACCESS_SECRET = process.env.JWT_ACCESS_SECRET;
const REFRESH_SECRET = process.env.JWT_REFRESH_SECRET;
const ISSUER = 'api.example.com';
const AUDIENCE = 'example-web';

function createReadiness() {
  let ready = true;

  function markUnready() {
    ready = false;
  }

import { useEffect, useState } from "react";

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

  useEffect(() => {

// ES6 Class syntax
class Person {
  constructor(name, age) {
    this.name = name;
    this.age = age;
  }