Files
Thomas Hallock bda5bc6c0e fix: prevent database imports from being bundled into client code
**Problem:**
- player-ownership.ts imported drizzle-orm and @/db at top level
- When RoomMemoryPairsProvider imported client-safe utilities, Webpack bundled ALL imports including database code
- This caused hydration error: "The 'original' argument must be of type Function"
- Node.js util.promisify was being called in browser context

**Solution:**
1. Created player-ownership.client.ts with ONLY client-safe utilities
   - No database imports
   - Safe to import from 'use client' components
   - Contains: buildPlayerOwnershipFromRoomData(), buildPlayerMetadata(), helper functions

2. Updated player-ownership.ts to re-export client utilities and add server-only functions
   - Re-exports everything from .client.ts
   - Adds buildPlayerOwnershipMap() (async, database-backed)
   - Safe to import from server components/API routes

3. Updated RoomMemoryPairsProvider to import from .client.ts

**Result:**
- No more hydration errors on /arcade/room
- Client bundle doesn't include database code
- Server code can still use both client and server utilities

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-10-10 11:40:46 -05:00

919 lines
25 KiB
JavaScript

#!/usr/bin/env node
/**
* Generate SVG examples and README content for AbacusReact
*
* This script creates actual SVG files using react-dom/server and
* generates a balanced README with usage examples.
*/
const fs = require("fs").promises;
const path = require("path");
const React = require("react");
const { renderToStaticMarkup } = require("react-dom/server");
// Setup comprehensive DOM globals for React Spring and dependencies
const { JSDOM } = require("jsdom");
if (typeof global.window === "undefined") {
const dom = new JSDOM("<!DOCTYPE html><html><body></body></html>", {
url: "http://localhost",
pretendToBeVisual: true,
resources: "usable",
});
global.window = dom.window;
global.document = dom.window.document;
global.navigator = dom.window.navigator;
global.HTMLElement = dom.window.HTMLElement;
global.SVGElement = dom.window.SVGElement;
global.Element = dom.window.Element;
global.requestAnimationFrame =
dom.window.requestAnimationFrame ||
function (cb) {
return setTimeout(cb, 16);
};
global.cancelAnimationFrame =
dom.window.cancelAnimationFrame ||
function (id) {
return clearTimeout(id);
};
// Add customElements for number-flow compatibility
global.customElements = {
define: function () {},
get: function () {
return undefined;
},
whenDefined: function () {
return Promise.resolve();
},
};
// Add ResizeObserver mock
global.ResizeObserver = class ResizeObserver {
observe() {}
unobserve() {}
disconnect() {}
};
// Mock React Spring to return static components but preserve all SVG elements
const createAnimatedComponent = (tag) => {
// Return a React component that forwards props to the base element
return React.forwardRef((props, ref) => {
return React.createElement(tag, { ...props, ref });
});
};
const mockAnimated = {
div: createAnimatedComponent("div"),
svg: createAnimatedComponent("svg"),
g: createAnimatedComponent("g"),
circle: createAnimatedComponent("circle"),
rect: createAnimatedComponent("rect"),
path: createAnimatedComponent("path"),
text: createAnimatedComponent("text"),
polygon: createAnimatedComponent("polygon"),
line: createAnimatedComponent("line"),
foreignObject: createAnimatedComponent("foreignObject"),
};
// Mock @react-spring/web with better stubs
require.cache[require.resolve("@react-spring/web")] = {
exports: {
useSpring: () => [
{ x: 0, y: 0 },
{ start: () => {}, set: () => {} },
],
useSpringValue: () => ({ start: () => {}, get: () => 0, to: () => {} }),
animated: mockAnimated,
config: { default: {}, slow: {}, wobbly: {}, stiff: {} },
to: (springs, fn) => (fn ? fn(springs) : springs),
},
};
// Mock @use-gesture/react with proper signatures
require.cache[require.resolve("@use-gesture/react")] = {
exports: {
useDrag: () => () => ({}),
useGesture: () => () => ({}),
},
};
// Mock @number-flow/react with aggressive SVG text replacement
require.cache[require.resolve("@number-flow/react")] = {
exports: {
__esModule: true,
default: ({ children, value, format, style, ...props }) => {
// Use value if provided, otherwise fallback to children
const displayValue = value !== undefined ? value : children;
// Return raw text content - React will render this as a text node
return String(displayValue);
},
},
};
}
// Import our component after setting up globals - use source directly
const { AbacusReact } = require("./src/AbacusReact.tsx");
// Key example configurations for different use cases
const examples = [
{
name: "basic-usage",
title: "Basic Usage",
description: "Simple abacus showing a number",
code: `<AbacusReact
value={123}
columns={3}
showNumbers={true}
scaleFactor={1.0}
/>`,
props: {
value: 123,
columns: 3,
showNumbers: true,
scaleFactor: 1.0,
animated: false, // Disable animations for static SVG
},
},
{
name: "interactive",
title: "Interactive Mode",
description: "Clickable abacus with animations",
code: `<AbacusReact
value={456}
columns={3}
interactive={true}
animated={true}
showNumbers={true}
callbacks={{
onValueChange: (newValue) => console.log('New value:', newValue),
onBeadClick: (event) => console.log('Bead clicked:', event)
}}
/>`,
props: {
value: 456,
columns: 3,
interactive: true,
animated: false, // Disable animations for static SVG
showNumbers: true,
},
},
{
name: "custom-styling",
title: "Custom Styling",
description: "Personalized colors and highlights",
code: `<AbacusReact
value={789}
columns={3}
colorScheme="place-value"
beadShape="circle"
customStyles={{
heavenBeads: { fill: '#ff6b35' },
earthBeads: { fill: '#3498db' },
numerals: { color: '#2c3e50', fontWeight: 'bold' }
}}
highlightBeads={[
{ columnIndex: 1, beadType: 'heaven' }
]}
/>`,
props: {
value: 789,
columns: 3,
colorScheme: "place-value",
beadShape: "circle",
animated: false, // Disable animations for static SVG
customStyles: {
heavenBeads: { fill: "#ff6b35" },
earthBeads: { fill: "#3498db" },
numerals: { color: "#2c3e50", fontWeight: "bold" },
},
highlightBeads: [{ columnIndex: 1, beadType: "heaven" }],
},
},
{
name: "tutorial-mode",
title: "Tutorial System",
description: "Educational guidance with tooltips",
code: `<AbacusReact
value={42}
columns={2}
interactive={true}
overlays={[{
id: 'tip',
type: 'tooltip',
target: { type: 'bead', columnIndex: 0, beadType: 'earth', beadPosition: 1 },
content: <div>Click this bead!</div>,
offset: { x: 0, y: -30 }
}]}
callbacks={{
onBeadClick: (event) => {
if (event.columnIndex === 0 && event.beadType === 'earth' && event.position === 1) {
console.log('Correct!');
}
}
}}
/>`,
props: {
value: 42,
columns: 2,
interactive: true,
animated: false, // Disable animations for static SVG
showNumbers: true,
},
},
];
/**
* Generate SVG examples using react-dom/server
*/
async function generateSVGExamples() {
if (!AbacusReact) {
console.log("🔨 Building package first...");
const { execSync } = require("child_process");
try {
execSync("pnpm run build", { stdio: "inherit" });
AbacusReact = require("./dist/index.cjs.js").AbacusReact;
} catch (error) {
console.error("❌ Failed to build package:", error.message);
throw error;
}
}
console.log("🎨 Generating SVG examples...");
// Create examples directory
const examplesDir = path.join(__dirname, "examples");
try {
await fs.mkdir(examplesDir, { recursive: true });
} catch (error) {
// Directory might already exist
}
const generatedFiles = [];
for (const example of examples) {
try {
console.log(`📐 Generating ${example.name}.svg...`);
// Create React element with the example props
const element = React.createElement(AbacusReact, example.props);
// Render using react-dom/server to show the actual component
const fullMarkup = renderToStaticMarkup(element);
// Extract just the SVG content from the rendered HTML
const svgMatch = fullMarkup.match(/<svg[^>]*>.*<\/svg>/s);
let svgMarkup = svgMatch ? svgMatch[0] : fullMarkup;
// Add required xmlns attributes for GitHub compatibility
if (svgMarkup.includes("<svg")) {
svgMarkup = svgMarkup.replace(
/<svg([^>]*)>/,
'<svg$1 xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:h5="http://www.w3.org/1999/xhtml">',
);
}
// Replace foreignObject elements with native SVG text elements for better compatibility
svgMarkup = svgMarkup.replace(
/<foreignObject([^>]*)><div[^>]*>([^<]+)<\/div><\/foreignObject>/g,
(match, attributes, textContent) => {
// Extract x, y, width, height from foreignObject
const xMatch = attributes.match(/x="([^"]+)"/);
const yMatch = attributes.match(/y="([^"]+)"/);
const widthMatch = attributes.match(/width="([^"]+)"/);
const heightMatch = attributes.match(/height="([^"]+)"/);
if (xMatch && yMatch && widthMatch && heightMatch) {
const x = parseFloat(xMatch[1]) + parseFloat(widthMatch[1]) / 2; // Center horizontally
// Match React component positioning exactly:
// foreignObject y = (baseHeight + 25) - (8 * scaleFactor)
// foreignObject height = 16 * scaleFactor
// Text should be centered within foreignObject
const scaleFactor = example.props.scaleFactor || 1.0;
const foreignObjectY = parseFloat(yMatch[1]);
const foreignObjectHeight = parseFloat(heightMatch[1]);
const y = foreignObjectY + foreignObjectHeight / 2; // Center within foreignObject
// Calculate font size to match React component: Math.max(8, 14 * scaleFactor)
const fontSize = Math.max(8, 14 * scaleFactor);
return `<text x="${x}" y="${y}" text-anchor="middle" dominant-baseline="middle" font-family="monospace" font-weight="bold" font-size="${fontSize}" fill="#333">${textContent.trim()}</text>`;
}
return match; // Return original if we can't parse
},
);
// Add metadata as comments
const svgWithMetadata = `<!-- ${example.description} -->
<!-- Generated from: ${JSON.stringify(example.props, null, 2).replace(/-->/g, "--&gt;")} -->
${svgMarkup}`;
// Save to file
const filename = `${example.name}.svg`;
const filepath = path.join(examplesDir, filename);
await fs.writeFile(filepath, svgWithMetadata, "utf8");
generatedFiles.push(filename);
console.log(`✅ Generated ${filename}`);
} catch (error) {
console.error(`❌ Failed to generate ${example.name}:`, error.message);
}
}
// Generate examples index file
const indexContent = `# AbacusReact Examples
Generated SVG examples demonstrating various features of the AbacusReact component.
## Files
${generatedFiles
.map((file) => {
const example = examples.find((ex) => `${ex.name}.svg` === file);
return `- **${file}** - ${example?.description || "Example usage"}`;
})
.join("\n")}
## Usage in Documentation
These SVG files can be embedded directly in markdown:
\`\`\`markdown
![Basic Usage](./examples/basic-usage.svg)
\`\`\`
Or referenced in HTML:
\`\`\`html
<img src="./examples/basic-usage.svg" alt="Basic AbacusReact Usage" />
\`\`\`
---
_Generated automatically by generate-examples.js using react-dom/server_
_Last updated: ${new Date().toISOString()}_
`;
await fs.writeFile(path.join(examplesDir, "README.md"), indexContent, "utf8");
console.log(`✅ Generated ${generatedFiles.length} SVG example files`);
console.log(`📂 Examples available in: ${examplesDir}`);
return generatedFiles;
}
// Generate enhanced Storybook stories
async function generateStorybookStories() {
const storyContent = `import type { Meta, StoryObj } from '@storybook/react';
import { AbacusReact } from './AbacusReact';
import React from 'react';
const meta: Meta<typeof AbacusReact> = {
title: 'Examples/AbacusReact',
component: AbacusReact,
parameters: {
layout: 'centered',
docs: {
description: {
component: 'Interactive Soroban (Japanese abacus) component with comprehensive customization options.'
}
}
},
tags: ['autodocs'],
};
export default meta;
type Story = StoryObj<typeof meta>;
${examples
.map(
(example) => `
export const ${example.name.replace(/-([a-z])/g, (g) => g[1].toUpperCase())}: Story = {
name: '${example.title}',
args: ${JSON.stringify(example.props, null, 2)},
parameters: {
docs: {
description: {
story: '${example.description}'
}
}
}
};`,
)
.join("\n")}
// Advanced tutorial example (from our previous implementation)
export const TutorialExample: Story = {
name: 'Interactive Tutorial',
render: () => {
const [step, setStep] = React.useState(0);
const [feedbackMessage, setFeedbackMessage] = React.useState('');
const tutorialSteps = [
{
instruction: "Click the orange highlighted bead in the ones column (leftmost)",
highlightBeads: [{ columnIndex: 0, beadType: 'earth', position: 2 }],
value: 7
},
{
instruction: "Click anywhere in the ones column (leftmost column)",
highlightColumns: [0],
value: 7
}
];
const currentStep = tutorialSteps[step];
const handleBeadClick = (event: any) => {
let isCorrectTarget = false;
if (step === 0) {
const target = currentStep.highlightBeads?.[0];
isCorrectTarget = target &&
event.columnIndex === target.columnIndex &&
event.beadType === target.beadType &&
event.position === target.position;
} else if (step === 1) {
isCorrectTarget = event.columnIndex === 0;
}
if (isCorrectTarget && step < tutorialSteps.length - 1) {
setStep(step + 1);
setFeedbackMessage('✅ Correct! Moving to next step...');
setTimeout(() => setFeedbackMessage(''), 2000);
} else if (!isCorrectTarget) {
setFeedbackMessage('⚠️ Try clicking the highlighted area.');
setTimeout(() => setFeedbackMessage(''), 3000);
}
};
const handleRestart = () => {
setStep(0);
setFeedbackMessage('');
};
return (
<div style={{ position: 'relative', padding: '20px' }}>
<div style={{ marginBottom: '20px', textAlign: 'center' }}>
<h3>Interactive Tutorial - Step {step + 1} of {tutorialSteps.length}</h3>
<p>{currentStep.instruction}</p>
</div>
<AbacusReact
value={currentStep.value}
columns={1}
interactive={true}
animated={true}
showNumbers={true}
scaleFactor={1.2}
highlightColumns={currentStep.highlightColumns}
highlightBeads={currentStep.highlightBeads}
customStyles={{
beads: {
0: {
earth: {
2: step === 0 ? { fill: '#ff6b35', stroke: '#d63031', strokeWidth: 2 } : undefined
}
}
}
}}
overlays={step === 0 ? [{
id: 'tutorial-tip',
type: 'tooltip',
target: {
type: 'bead',
columnIndex: 0,
beadType: 'earth',
beadPosition: 2
},
content: (
<div style={{
background: '#333',
color: 'white',
padding: '8px',
borderRadius: '4px',
fontSize: '12px',
maxWidth: '120px',
textAlign: 'center'
}}>
Click this bead!
<div style={{
position: 'absolute',
bottom: '-6px',
left: '50%',
transform: 'translateX(-50%)',
borderTop: '6px solid #333',
borderLeft: '6px solid transparent',
borderRight: '6px solid transparent'
}} />
</div>
),
offset: { x: 0, y: -50 }
}] : []}
callbacks={{
onBeadClick: handleBeadClick
}}
/>
<div style={{ marginTop: '20px', textAlign: 'center' }}>
<button onClick={handleRestart} style={{
padding: '8px 16px',
backgroundColor: '#007bff',
color: 'white',
border: 'none',
borderRadius: '4px',
cursor: 'pointer'
}}>
Restart Tutorial
</button>
</div>
{feedbackMessage && (
<div style={{
position: 'absolute',
right: '-300px',
top: '50%',
transform: 'translateY(-50%)',
background: '#f8f9fa',
border: '1px solid #dee2e6',
borderRadius: '4px',
padding: '12px',
fontSize: '14px',
maxWidth: '250px',
boxShadow: '0 2px 4px rgba(0,0,0,0.1)',
transition: 'all 0.3s ease'
}}>
{feedbackMessage}
</div>
)}
</div>
);
}
};
`;
await fs.writeFile(
path.join(__dirname, "src", "AbacusReact.examples.stories.tsx"),
storyContent,
"utf8",
);
console.log("✅ Generated AbacusReact.examples.stories.tsx");
}
// Generate balanced README
async function generateREADME() {
const readmeContent = `# @soroban/abacus-react
A comprehensive React component for rendering interactive Soroban (Japanese abacus) visualizations with advanced customization and tutorial capabilities.
## Features
- 🎯 **Interactive beads** - Click to toggle or use directional gestures
- 🎨 **Complete visual customization** - Style every element individually
- 📱 **Responsive scaling** - Configurable scale factor for different sizes
- 🌈 **Multiple color schemes** - Monochrome, place-value, alternating, heaven-earth
- 🎭 **Flexible shapes** - Diamond, square, or circle beads
- ⚡ **React Spring animations** - Smooth bead movements and transitions
- 🔧 **Developer-friendly** - Comprehensive hooks and callback system
- 🎓 **Tutorial system** - Built-in overlay and guidance capabilities
- 🧩 **Framework-free SVG** - Complete control over rendering
## Installation
\`\`\`bash
npm install @soroban/abacus-react
# or
pnpm add @soroban/abacus-react
# or
yarn add @soroban/abacus-react
\`\`\`
## Quick Start
${examples
.map(
(example) => `
### ${example.title}
${example.description}
<img src="https://raw.githubusercontent.com/antialias/soroban-abacus-flashcards/main/packages/abacus-react/examples/${example.name}.svg" alt="${example.title}">
\`\`\`tsx
${example.code}
\`\`\`
`,
)
.join("")}
## Core API
### Basic Props
\`\`\`tsx
interface AbacusConfig {
// Display
value?: number; // 0-99999, number to display
columns?: number | 'auto'; // Number of columns or auto-calculate
showNumbers?: boolean; // Show place value numbers
scaleFactor?: number; // 0.5 - 3.0, size multiplier
// Appearance
beadShape?: 'diamond' | 'square' | 'circle';
colorScheme?: 'monochrome' | 'place-value' | 'alternating' | 'heaven-earth';
colorPalette?: 'default' | 'colorblind' | 'mnemonic' | 'grayscale' | 'nature';
hideInactiveBeads?: boolean; // Hide/show inactive beads
// Interaction
interactive?: boolean; // Enable user interactions
animated?: boolean; // Enable animations
gestures?: boolean; // Enable drag gestures
}
\`\`\`
### Event Callbacks
\`\`\`tsx
interface AbacusCallbacks {
onValueChange?: (newValue: number) => void;
onBeadClick?: (event: BeadClickEvent) => void;
onBeadHover?: (event: BeadClickEvent) => void;
onBeadLeave?: (event: BeadClickEvent) => void;
onColumnClick?: (columnIndex: number) => void;
onNumeralClick?: (columnIndex: number, value: number) => void;
onBeadRef?: (bead: BeadConfig, element: SVGElement | null) => void;
}
interface BeadClickEvent {
columnIndex: number; // 0, 1, 2...
beadType: 'heaven' | 'earth'; // Type of bead
position: number; // Position within type (0-3 for earth)
active: boolean; // Current state
value: number; // Numeric value (1 or 5)
bead: BeadConfig; // Full bead configuration
}
\`\`\`
## Advanced Customization
### Granular Styling
Target any visual element with precise control:
\`\`\`tsx
const customStyles = {
// Global defaults
heavenBeads: { fill: '#ff6b35' },
earthBeads: { fill: '#3498db' },
activeBeads: { opacity: 1.0 },
inactiveBeads: { opacity: 0.3 },
// Column-specific overrides
columns: {
0: { // Hundreds column
heavenBeads: { fill: '#e74c3c' },
earthBeads: { fill: '#2ecc71' }
}
},
// Individual bead targeting
beads: {
1: { // Middle column
heaven: { fill: '#f39c12' },
earth: {
0: { fill: '#1abc9c' }, // First earth bead
3: { fill: '#e67e22' } // Fourth earth bead
}
}
},
// UI elements
reckoningBar: { stroke: '#34495e', strokeWidth: 3 },
columnPosts: { stroke: '#7f8c8d' },
numerals: {
color: '#2c3e50',
fontSize: '14px',
fontFamily: 'monospace'
}
};
<AbacusReact customStyles={customStyles} />
\`\`\`
### Tutorial and Overlay System
Create interactive educational experiences:
\`\`\`tsx
const overlays = [
{
id: 'welcome-tooltip',
type: 'tooltip',
target: {
type: 'bead',
columnIndex: 0,
beadType: 'earth',
beadPosition: 0
},
content: (
<div style={{
background: '#333',
color: 'white',
padding: '8px',
borderRadius: '4px'
}}>
Click me to start!
</div>
),
offset: { x: 0, y: -30 }
}
];
<AbacusReact
overlays={overlays}
highlightBeads={[
{ columnIndex: 0, beadType: 'earth', position: 0 }
]}
callbacks={{
onBeadClick: (event) => {
if (event.columnIndex === 0 && event.beadType === 'earth' && event.position === 0) {
console.log('Tutorial step completed!');
}
}
}}
/>
\`\`\`
### Bead Reference System
Access individual bead DOM elements for advanced positioning:
\`\`\`tsx
function AdvancedExample() {
const beadRefs = useRef(new Map<string, SVGElement>());
const handleBeadRef = (bead: BeadConfig, element: SVGElement | null) => {
const key = \`\${bead.columnIndex}-\${bead.type}-\${bead.position}\`;
if (element) {
beadRefs.current.set(key, element);
// Now you can position tooltips, highlights, etc. precisely
const rect = element.getBoundingClientRect();
console.log(\`Bead at column \${bead.columnIndex} is at:\`, rect);
}
};
return (
<AbacusReact
callbacks={{ onBeadRef: handleBeadRef }}
// ... other props
/>
);
}
\`\`\`
## Hooks
### useAbacusDimensions
Get exact sizing information for layout planning:
\`\`\`tsx
import { useAbacusDimensions } from '@soroban/abacus-react';
function MyComponent() {
const dimensions = useAbacusDimensions(3, 1.2); // 3 columns, 1.2x scale
return (
<div style={{ width: dimensions.width, height: dimensions.height }}>
<AbacusReact columns={3} scaleFactor={1.2} />
</div>
);
}
\`\`\`
## Educational Use Cases
### Interactive Math Lessons
\`\`\`tsx
function MathLesson() {
const [problem, setProblem] = useState({ a: 23, b: 45 });
const [step, setStep] = useState('show-first');
return (
<div>
<h3>Add {problem.a} + {problem.b}</h3>
<AbacusReact
value={step === 'show-first' ? problem.a : 0}
interactive={step === 'add-second'}
callbacks={{
onValueChange: (value) => {
if (value === problem.a + problem.b) {
celebrate();
}
}
}}
/>
</div>
);
}
\`\`\`
### Assessment Tools
\`\`\`tsx
function AbacusQuiz() {
const [answers, setAnswers] = useState([]);
const checkAnswer = (event: BeadClickEvent) => {
const isCorrect = validateBeadClick(event, expectedAnswer);
recordAnswer(event, isCorrect);
if (isCorrect) {
showSuccessFeedback();
} else {
showHint(event);
}
};
return (
<AbacusReact
interactive={true}
callbacks={{ onBeadClick: checkAnswer }}
customStyles={getAnswerHighlighting(answers)}
/>
);
}
\`\`\`
## TypeScript Support
Full TypeScript definitions included:
\`\`\`tsx
import {
AbacusReact,
AbacusConfig,
BeadConfig,
BeadClickEvent,
AbacusCustomStyles,
AbacusOverlay,
AbacusCallbacks,
useAbacusDimensions
} from '@soroban/abacus-react';
// All interfaces fully typed for excellent developer experience
\`\`\`
## Contributing
Contributions welcome! Please see our contributing guidelines and feel free to submit issues or pull requests.
## License
MIT License - see LICENSE file for details.
`;
await fs.writeFile(path.join(__dirname, "README.md"), readmeContent, "utf8");
console.log("✅ Generated balanced README.md");
}
// Main execution
async function generateExamples() {
console.log("🎨 Generating AbacusReact examples and documentation...");
try {
// Generate actual SVG files first
await generateSVGExamples();
// Then generate Storybook stories and README
await generateStorybookStories();
await generateREADME();
console.log("\n✅ All examples and documentation generated successfully!");
console.log("📸 Generated SVG examples using react-dom/server");
console.log("📖 Updated README.md with balanced documentation");
console.log(
"📚 Created new Storybook examples in AbacusReact.examples.stories.tsx",
);
} catch (error) {
console.error("💥 Generation failed:", error);
process.exit(1);
}
}
if (require.main === module) {
generateExamples();
}
module.exports = { generateExamples, examples };