@arnonsang/react-loading

A customizable and lightweight React loading component powered by pure CSS. Zero JavaScript animations for optimal performance - all effects use CSS transforms and keyframes for smooth rendering in your React applications.

Installation

npm i @arnonsang/react-loading
# or
yarn add @arnonsang/react-loading
# or
pnpm add @arnonsang/react-loading
# or
bun add @arnonsang/react-loading

Features

• 🎨 17 Beautiful Loading Variants - From classic spinners to modern animations
• 📐 6 Tailwind-Inspired Sizes - xs, sm, md, lg, xl, 2xl for perfect scaling
• 🎯 Full TypeScript Support - Complete type definitions and IntelliSense
• 🪶 Zero Dependencies - Lightweight with only React as peer dependency
• 📱 Responsive & Accessible - Works on all devices with accessibility support
• 🔧 Highly Customizable - Colors, dimensions, delays, and styling options
• ⚡ Optimized Performance - CSS-based animations for smooth 60fps

Usage

import Loading from '@arnonsang/react-loading';

// Basic usage
function MyComponent() {
  return <Loading />;
}

// With custom props
function CustomLoadingExample() {
  return (
    <Loading
      variant="spinner"
      size="md"
      themeColor="blue"
      text="Please wait..."
    />
  );
}

Props

All 17 Variants

Basic Animations

• spinner - Classic rotating spinner (perfect for general loading)
• dots - Three bouncing dots with smooth motion
• pulse - Pulsing circle with expanding rings
• bars - Animated vertical bars rising and falling

Advanced Animations

• skeleton - Skeleton loading placeholder with shimmer effect
• bubbles - Floating bubbles appearing and disappearing
• cylon - Scanning line animation (Battlestar Galactica inspired)
• spinningBubbles - Rotating bubbles around central point

Modern Effects

• ripple - Expanding ripple effect with concentric circles
• wave - Wave motion animation with sequential dots
• orbit - Orbiting dots around center with physics
• bounce - Bouncing ball with realistic shadow

Creative Variants

• snake - Snake-like movement with flowing segments
• grid - 3x3 grid of pulsing squares
• heart - Heartbeat pulse animation
• spiral - Spiral rotating dots with fade effect
• blank - Invisible placeholder for conditional loading

Size Options

Following Tailwind CSS size conventions:

Examples

// Spinner with custom color
<Loading variant="spinner" color="#FF5733" />

// Full-page loading
<Loading variant="dots" fullPage={true} />

// Different sizes (Tailwind-inspired)
<Loading variant="spinner" size="xs" />   {/* 12px */}
<Loading variant="dots" size="sm" />     {/* 20px */}
<Loading variant="pulse" size="md" />    {/* 36px - default */}
<Loading variant="bars" size="lg" />     {/* 56px */}
<Loading variant="grid" size="xl" />     {/* 80px */}
<Loading variant="heart" size="2xl" />   {/* 112px */}

// Custom themed loading
<Loading
  variant="pulse"
  size="lg"
  themeColor="purple"
  text="Processing..."
/>

// Skeleton loading
<Loading variant="skeleton" width={200} height={100} />

// Delayed animation
<Loading variant="spinningBubbles" delay={500} />

// Advanced variants with custom styling
<Loading variant="ripple" size="lg" color="#e91e63" />
<Loading variant="wave" size="xl" themeColor="purple" />
<Loading variant="orbit" size="lg" color="#2196f3" />
<Loading variant="bounce" size="md" color="#ff9800" />
<Loading variant="snake" size="sm" themeColor="green" />
<Loading variant="grid" size="lg" color="#607d8b" />
<Loading variant="heart" size="xl" color="#f44336" />
<Loading variant="spiral" size="2xl" delay={200} />

// Custom dimensions (overrides size)
<Loading variant="skeleton" width={200} height={100} />
<Loading variant="cylon" width="300px" height="8px" />
<Loading variant="orbit" width={120} height={120} />

CSS Customization

For advanced customization, you can override styles using CSS classes. Each variant has specific class names:

CSS Class Structure

/* Main container */
.loading-container { }

/* Content wrapper */
.loading-content { }

/* Loading text */
.loading-text { }

/* Full page overlay */
.loading-fullpage { }

/* Size classes */
.loading-xs, .loading-sm, .loading-md, .loading-lg, .loading-xl, .loading-2xl { }

Variant-Specific Classes

Each loading variant uses specific CSS classes that you can customize:

/* Spinner */
.loading-spinner { }

/* Dots */
.loading-dots { }
.loading-dot { }

/* Pulse */
.loading-pulse { }

/* Skeleton */
.loading-skeleton { }
.skeleton-line { }

/* Bars */
.loading-bars { }
.bar { }

/* Bubbles */
.loading-bubbles { }
.bubble { }

/* Cylon */
.loading-cylon { }
.cylon-line { }

/* Spinning Bubbles */
.loading-spinning-bubbles { }

/* Ripple */
.loading-ripple { }
.ripple-circle { }

/* Wave */
.loading-wave { }
.wave-dot { }

/* Orbit */
.loading-orbit { }
.orbit-center { }
.orbit-dot { }

/* Bounce */
.loading-bounce { }
.bounce-ball { }
.bounce-shadow { }

/* Snake */
.loading-snake { }
.snake-segment { }

/* Grid */
.loading-grid { }
.grid-square { }

/* Heart */
.loading-heart { }
.heart-shape { }

/* Spiral */
.loading-spiral { }
.spiral-dot { }

Custom Styling Examples

/* Custom spinner with gradient */
.my-custom-loading .loading-spinner {
  background: linear-gradient(45deg, #ff6b6b, #4ecdc4);
  border-radius: 50%;
}

/* Custom dots with different colors */
.my-custom-loading .loading-dot:nth-child(1) { background: #ff6b6b; }
.my-custom-loading .loading-dot:nth-child(2) { background: #4ecdc4; }
.my-custom-loading .loading-dot:nth-child(3) { background: #45b7d1; }

/* Custom text styling */
.my-custom-loading .loading-text {
  font-weight: bold;
  color: #2c3e50;
  font-size: 1.1rem;
}

/* Custom container background */
.my-custom-loading.loading-container {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 12px;
  padding: 1.5rem;
}

// Usage with custom className
<Loading 
  variant="spinner" 
  className="my-custom-loading"
  text="Custom Loading..."
/>

TypeScript Support

This package includes complete TypeScript definitions with full IntelliSense support:

import Loading, { 
  LoadingProps, 
  LoadingVariant, 
  LoadingSize, 
  LoadingThemeColor 
} from '@arnonsang/react-loading';

// Type-safe component usage
const MyComponent: React.FC = () => {
  const variant: LoadingVariant = 'spinner';
  const size: LoadingSize = 'lg';
  
  return (
    <Loading 
      variant={variant}
      size={size}
      themeColor="blue"
      delay={300}
    />
  );
};

Performance & Best Practices

• CSS-based animations ensure smooth 60fps performance
• Zero JavaScript animations - all effects use CSS transforms and keyframes
• Lightweight bundle - ~15KB minified, ~5KB gzipped
• Tree-shakeable - Only import what you need
• Server-side rendering compatible
• Accessibility-friendly - Respects prefers-reduced-motion

// Conditional loading with performance in mind
{isLoading && (
  <Loading 
    variant="dots" 
    size="sm" 
    hideText={true}
    delay={100} // Prevents flash for quick loads
  />
)}

// Full-page loading overlay
<Loading 
  variant="spinner"
  size="xl" 
  fullPage={true}
  text="Loading your content..."
/>

Browser Support

The loading animations are supported in all modern browsers:

• Chrome (latest)
• Firefox (latest)
• Safari (latest)
• Edge (latest)

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

License

MIT © arnonsang