feat(page): implement loading spinner and error boundary for ItemsList component
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1 changed files with 123 additions and 98 deletions
213
src/app/page.tsx
213
src/app/page.tsx
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@ -1,102 +1,127 @@
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import Image from "next/image";
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'use client';
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import React, { Suspense } from 'react';
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import { ItemsList } from '@/components/ItemsList';
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// Loading component for better UX
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function LoadingSpinner() {
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return (
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<div className="flex items-center justify-center min-h-[400px]">
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<div className="flex flex-col items-center space-y-4">
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<div className="animate-spin rounded-full h-12 w-12 border-b-2 border-blue-500"></div>
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<span className="text-gray-600 text-sm">Loading items...</span>
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</div>
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</div>
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);
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}
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// Error boundary component
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function ErrorFallback({ error, resetError }: { error: Error; resetError: () => void }) {
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return (
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<div className="flex flex-col items-center justify-center min-h-[400px] p-8">
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<div className="bg-red-50 border border-red-200 rounded-lg p-6 max-w-md w-full">
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<h2 className="text-red-800 text-lg font-semibold mb-2">
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Something went wrong
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</h2>
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<p className="text-red-600 text-sm mb-4">
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{error.message || 'An unexpected error occurred while loading the items.'}
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</p>
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<div className="flex space-x-3">
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<button
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onClick={resetError}
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className="bg-red-600 text-white px-4 py-2 rounded hover:bg-red-700 transition-colors text-sm"
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>
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Try again
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</button>
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<button
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onClick={() => window.location.reload()}
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className="bg-gray-600 text-white px-4 py-2 rounded hover:bg-gray-700 transition-colors text-sm"
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>
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Reload page
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</button>
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</div>
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</div>
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</div>
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);
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}
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// Simple error boundary implementation
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class ErrorBoundary extends React.Component<
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{ children: React.ReactNode; fallback: (error: Error, resetError: () => void) => React.ReactNode },
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{ hasError: boolean; error?: Error }
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> {
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constructor(props: { children: React.ReactNode; fallback: (error: Error, resetError: () => void) => React.ReactNode }) {
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super(props);
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this.state = { hasError: false };
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}
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static getDerivedStateFromError(error: Error) {
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return { hasError: true, error };
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}
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componentDidCatch(error: Error, errorInfo: React.ErrorInfo) {
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console.error('Error caught by boundary:', error, errorInfo);
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}
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render() {
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if (this.state.hasError && this.state.error) {
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return this.props.fallback(this.state.error, () => {
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this.setState({ hasError: false, error: undefined });
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});
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}
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return this.props.children;
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}
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}
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export default function Home() {
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export default function Home() {
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return (
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// Get the current URL for the ItemsList component
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<div className="grid grid-rows-[20px_1fr_20px] items-center justify-items-center min-h-screen p-8 pb-20 gap-16 sm:p-20 font-[family-name:var(--font-geist-sans)]">
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const currentUrl = typeof window !== 'undefined' ? window.location.href : 'default';
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<main className="flex flex-col gap-[32px] row-start-2 items-center sm:items-start">
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<Image
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className="dark:invert"
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src="/next.svg"
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alt="Next.js logo"
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width={180}
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height={38}
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priority
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/>
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<ol className="list-inside list-decimal text-sm/6 text-center sm:text-left font-[family-name:var(--font-geist-mono)]">
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<li className="mb-2 tracking-[-.01em]">
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Get started by editing{" "}
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<code className="bg-black/[.05] dark:bg-white/[.06] px-1 py-0.5 rounded font-[family-name:var(--font-geist-mono)] font-semibold">
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src/app/page.tsx
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</code>
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.
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</li>
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<li className="tracking-[-.01em]">
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Save and see your changes instantly.
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</li>
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</ol>
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<div className="flex gap-4 items-center flex-col sm:flex-row">
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return (
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<a
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<div className="min-h-screen bg-gray-50">
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className="rounded-full border border-solid border-transparent transition-colors flex items-center justify-center bg-foreground text-background gap-2 hover:bg-[#383838] dark:hover:bg-[#ccc] font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 sm:w-auto"
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{/* Header */}
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href="https://vercel.com/new?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
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<header className="bg-white shadow-sm border-b">
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target="_blank"
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<div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8">
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rel="noopener noreferrer"
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<div className="flex justify-between items-center h-16">
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>
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<div className="flex items-center">
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<Image
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<h1 className="text-xl font-semibold text-gray-900">
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className="dark:invert"
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CompareWare
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src="/vercel.svg"
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</h1>
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alt="Vercel logomark"
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</div>
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width={20}
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<div className="flex items-center space-x-4">
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height={20}
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{/* Add navigation items here if needed */}
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/>
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<div className="text-sm text-gray-500">
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Deploy now
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Item Comparison Tool
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</a>
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</div>
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<a
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</div>
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className="rounded-full border border-solid border-black/[.08] dark:border-white/[.145] transition-colors flex items-center justify-center hover:bg-[#f2f2f2] dark:hover:bg-[#1a1a1a] hover:border-transparent font-medium text-sm sm:text-base h-10 sm:h-12 px-4 sm:px-5 w-full sm:w-auto md:w-[158px]"
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</div>
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href="https://nextjs.org/docs?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
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target="_blank"
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rel="noopener noreferrer"
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>
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Read our docs
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</a>
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</div>
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</div>
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</header>
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{/* Main content */}
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<main className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
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<div className="mb-8">
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<h2 className="text-2xl font-bold text-gray-900 mb-2">
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Items Comparison
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</h2>
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</div>
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{/* Items list with error boundary and suspense */}
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<ErrorBoundary fallback={(error, resetError) => <ErrorFallback error={error} resetError={resetError} />}>
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<Suspense fallback={<LoadingSpinner />}>
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<ItemsList url={currentUrl} />
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</Suspense>
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</ErrorBoundary>
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</main>
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</main>
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<footer className="row-start-3 flex gap-[24px] flex-wrap items-center justify-center">
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<a
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{/* Footer */}
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className="flex items-center gap-2 hover:underline hover:underline-offset-4"
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<footer className="bg-white border-t mt-16">
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href="https://nextjs.org/learn?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
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<div className="max-w-7xl mx-auto px-4 sm:px-6 lg:px-8 py-8">
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target="_blank"
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<div className="text-center text-gray-500 text-sm">
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rel="noopener noreferrer"
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<p>© 2025 CompareWare.</p>
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>
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</div>
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<Image
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</div>
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aria-hidden
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src="/file.svg"
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alt="File icon"
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width={16}
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height={16}
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/>
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Learn
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</a>
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<a
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className="flex items-center gap-2 hover:underline hover:underline-offset-4"
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href="https://vercel.com/templates?framework=next.js&utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
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target="_blank"
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rel="noopener noreferrer"
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>
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<Image
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aria-hidden
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src="/window.svg"
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alt="Window icon"
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width={16}
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height={16}
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/>
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Examples
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</a>
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<a
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className="flex items-center gap-2 hover:underline hover:underline-offset-4"
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href="https://nextjs.org?utm_source=create-next-app&utm_medium=appdir-template-tw&utm_campaign=create-next-app"
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target="_blank"
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rel="noopener noreferrer"
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>
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<Image
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aria-hidden
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src="/globe.svg"
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alt="Globe icon"
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width={16}
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height={16}
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/>
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Go to nextjs.org →
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</a>
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</footer>
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</footer>
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</div>
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</div>
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);
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);
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