javascript

javascript
import { useState, useRef, useEffect, useCallback } from "react";

export function useCarousel(length, { delay = 4000 } = {}) {
  const [index, setIndex] = useState(0);
  const [paused, setPaused] = useState(false);
  const savedCallback = useRef(null);

Autoplay Image Carousel in React with Pause-on-Hover via useRef and useEffect

react hooks carousel
by codesnips 3 tabs
javascript
const { EventEmitter } = require('events');

class NotificationBus extends EventEmitter {
  constructor(bufferSize = 100) {
    super();
    this.setMaxListeners(0);

Server-Sent Events for Live Notifications with a Reconnectable EventSource Hook

sse server-sent-events eventsource
by codesnips 3 tabs
erb
<h1>Catalog</h1>

<%= turbo_frame_tag "products" do %>
  <div class="product-grid" data-controller="frame">
    <% @products.each do |product| %>
      <%= render "products/card", product: product %>

Pagination links that escape a Turbo Frame with _top

rails hotwire turbo
by codesnips 4 tabs
javascript
import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  static targets = ["sentinel"]
  static values = {
    url: String

Infinite scroll with Turbo Frames and Intersection Observer

hotwire turbo stimulus
by Jordan Lee 3 tabs
typescript
import React from 'react'

interface SkeletonProps {
  width?: string | number
  height?: string | number
  className?: string

Skeleton screens for better perceived performance

react ux performance
by Maya Patel 3 tabs
erb
<%= turbo_stream.prepend 'items' do %>
  <%= render @item %>
<% end %>

<turbo-stream action="reset_form" target="new_item_form"></turbo-stream>

Custom Turbo Stream action: reset a form after success

rails hotwire turbo
by Henry Kim 3 tabs
javascript
// app/javascript/controllers/dropdown_controller.js
import { Controller } from "@hotwired/stimulus"

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

Stimulus for sprinkles of JavaScript interactivity

ruby rails stimulus
by Sarah Mitchell 3 tabs
erb
<div class="copy-field"
     data-controller="clipboard"
     data-clipboard-content-value="<%= content %>"
     data-clipboard-success-value="Copied!">

  <input type="text"

Copy-to-clipboard button with Stimulus

rails hotwire stimulus
by codesnips 3 tabs
javascript
const express = require('express');
const webhookRouter = require('./webhookRouter');
const apiRouter = require('./apiRouter');

const app = express();

Verify Stripe Webhook Signatures with a Raw-Body Express Route

express stripe webhooks
by codesnips 3 tabs
javascript
function escapeCell(value) {
  if (value === null || value === undefined) return '';
  const str = String(value);
  if (/[",\n\r]/.test(str)) {
    return '"' + str.replace(/"/g, '""') + '"';
  }

Stream a Large CSV Export in Express with Backpressure and an Async Row Generator

express streaming csv
by codesnips 3 tabs
ruby
class ApplicationController < ActionController::Base
  before_action :set_turbo_cache_control

  class_attribute :turbo_no_cache, default: false

  def self.no_turbo_cache

Avoid caching sensitive pages in Turbo Drive

rails hotwire turbo
by codesnips 4 tabs
javascript
import { Controller } from "@hotwired/stimulus"

export default class extends Controller {
  static values = { keymap: Object }

  connect() {

Stimulus: keyboard shortcuts that work with Turbo navigation

rails stimulus hotwire
by codesnips 3 tabs