+ {subtitle} +
++ Local time +
++ {now.toLocaleTimeString([], { + hour: "2-digit", + minute: "2-digit", + second: "2-digit", + })} +
++ {displayName} +
++ Demo member +
++ {eyebrow} +
+ ++ {greeting}, {displayName}. Make today count. +
++ {now.toLocaleDateString([], { + weekday: "long", + day: "numeric", + month: "long", + year: "numeric", + })} +
+{user ? "Taking you to your dashboardβ¦" : "Loadingβ¦"}
+Checking your demo sessionβ¦
+Sign in to access this page.
+ Go to sign in ++ {completed} + + {" "}/ {goal} + +
+ + + {remaining === 0 ? "Goal completed!" : `${remaining} activities left`} + ++ {completed ? "Lesson completed!" : "Finished this lesson?"} +
+ ++ {completed + ? "Your learning progress has been updated." + : `Complete this lesson to earn ${xp} XP.`} +
++ {learning.xp} total XP +
++ Earn {nextLevelXP} more XP to reach level {learning.level + 1}. +
++ Learn programming, explore modern technologies, practice + development, and contribute to open-source projects with + CodeHarborHub. +
+ ++ const developer = {"{"} +
+ ++ learn: "Every day", +
+ ++ build: "Real projects", +
+ ++ contribute: "Open source", +
+ ++ mindset: "Keep growing" +
+ +{"};"}
+ ++ β Start your journey... +
+ ++ Enter your details below to access your CodeHarborHub workspace. +
+ ++ Your account and session are stored in this browser using + LocalStorage. This is not secure production authentication. + Never enter a real or reused password. +
++ Learn programming Β· Build projects Β· Contribute to open source +
+ ++ Fill in your details to create your CodeHarborHub demo profile. +
++ Loading your saved resources... +
++ Keep useful tutorials, roadmaps, and coding resources + together. +
++ Total saved +
++ {learning.bookmarks.length} +
++ Tutorials +
++ {learning.bookmarks.filter((b) => b.type === "tutorial").length} +
++ Challenges +
++ {learning.bookmarks.filter((b) => b.type === "challenge").length} +
++ {bookmark.description || "Saved learning resource."} +
+ ++ {search || activeFilter !== "all" + ? "Try another search or select a different category." + : "Bookmark tutorials, programming lessons, roadmaps, and challenges to find them here."} +
+ + + Explore tutorials β + ++ Explore new technologies, practice your skills, and create + something meaningful. Your developer journey continues here. +
+ ++ KEEP BUILDING +
++ {completedTasks.length}/{learningTasks.length} +
++ Complete your suggested first steps. +
++ {completion}% +
++ Active +
++ Your demo session is available in this browser. +
++ YOUR FIRST STEPS +
++ A simple guide to getting started with CodeHarborHub. +
++ β¨ Your starter checklist is complete! +
++ You are ready to explore, learn, and build with CodeHarborHub. +
++ STAY PRODUCTIVE +
++ Set an intention for your next learning session. +
++ {focusMode + ? "Your intention is set. Choose a tutorial or project and get started." + : "Reduce distractions and give your next learning task your attention."} +
+ + ++ This is a visual focus toggle, not a timed productivity tracker. +
++ DISCOVER CODEHARBORHUB +
++ Everything you need to learn, build, and grow. +
++ {resource.description} +
+ + + {resource.link} + + β + + ++ You are using a demo account +
++ Your account and session are stored locally in this browser. + This prototype does not provide secure server-side + authentication, cloud synchronization, or persistent + server-backed learning progress. +
++ {email || "No email available"} +
++ Profile completion +
+ ++ {completion}% +
+ ++ PERSONAL INFORMATION +
+ ++ Update how your identity appears in your workspace. +
++ Profile changes are saved through your local demo authentication + provider. This profile does not currently support profile photos, + public profile publishing, email changes, or cloud synchronization. + Do not store sensitive personal information in this prototype. +
++ {user?.email || "No email available"} +
+ + + + Browser-local demo account + ++ Review the information associated with your demo account. +
++ {item.value} +
++ Account information is read from your local demo session. +
+ + + Update personal details β + ++ Understand how this frontend demonstration handles your + account information. +
++ Demo account information is stored in LocalStorage on this + browser and website origin. +
++ This demo does not upload your account record to CodeHarborHub + servers or synchronize it across devices. +
++ LocalStorage can be inspected or modified by anyone with + access to this browser. This frontend demo is not production + authentication. Do not store real passwords, payment + information, or sensitive personal data here. +
++ CodeHarborHub Account Center +
++ Manage your learning identity and account preferences. +
++ Understand how this demo handles your session and data. +
++ Local storage +
++ Data stays in this browser's website storage. +
++ Session duration +
++ Demo session is designed to last up to seven days. +
++ Server verification +
++ No server-side authentication is implemented. +
++ Your demo session is maintained using LocalStorage. +
++ Local session record +
++ The application stores a session record in your browser. +
++ Seven-day session design +
++ The demo is designed to expire the session after up to + seven days, depending on the authentication service logic. +
++ Not server verified +
++ This session is not validated by a secure authentication + server and must not be used for production authorization. +
++ Password recovery is simulated in the browser. The demo does + not send an email, issue a real verification link, or perform + an identity check. +
+ + + View recovery demo + β + ++ This frontend demonstration uses browser storage rather than a + centralized user database. +
+ ++ Demo user records, session information, and pending password + reset state managed by the authentication feature. +
++ Use the delete demo data option below to clear data managed + by this authentication feature in this browser. +
++ This action removes demo users, session information, and + pending password reset state managed by this feature in the + current browser. It does not delete unrelated browser data or + data stored by other applications. +
+ + {!showConfirm ? ( + + ) : ( ++ You will be signed out and redirected to the registration + page. This action cannot be undone. +
++ Need help managing your account? +
++ Review your account information and profile preferences. +
++ This is a simplified simulation with made-up numbers, so you can see the relative effect of each choice. Real browsers are smarter and messier: they share bandwidth between files, scan ahead for resources, cache files, and give different files different priorities. Never trust a simulation for your own site. Measure it, with the tools described below. +
+Rate each result. Use the published thresholds: LCP good up to 2.5 s and poor over 4 s. INP good up to 200 ms and poor over 500 ms. CLS good up to 0.1 and poor over 0.25.
+ {vitalsItems.map((item) => ( + + ))} ++ {" "} + +
+{shown ? right + " of " + vitalsItems.length + " correct." : ""}
++ These are the thresholds Google publishes at the time of writing. The set of metrics and the numbers can change, so check the current web.dev documentation. The full lesson is Core Web Vitals, in this section. +
+Choose the best tool for each problem.
+ {toolScenarios.map((item) => ( ++ {" "} + + {shown && picks[item.id] ? {picks[item.id] === item.expect ? "Good." : "Better: " + labelOf(item.expect) + "."} : null} +
+ ))} ++ {" "} + +
+{shown ? right + " of " + toolScenarios.length + " match the usual choice." : ""}
+
+
+
+ 
+
+```
+
+What makes pages slow, and the HTML habits that make them fast.
Finding the few files that must arrive first, and putting them first.
LCP, INP, and CLS: what they measure, and how to improve them.
How preload, prefetch, preconnect, and dns-prefetch differ.
Fetching a file you know the page needs, earlier than the browser would.
How classic, module, defer, and async scripts affect the page.
Sending each device an image of the right size.