Ultimate Health & Fitness Premium Resource Hub 2026 | Expert Training & Nutrition
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/**
FITHUB RESOURCE ENGINE - PART 3
Advanced Functional Layer
*/
// 1. Database & State Management
const state = {
resources: resourceDB,
filtered: resourceDB,
bookmarks: JSON.parse(localStorage.getItem('fithub_bookmarks') || '[]'),
theme: localStorage.getItem('dark-mode') || 'light',
currentPage: 1,
perPage: 9
};
// 2. Core Rendering Engine
function render(data = state.filtered) {
const grid = document.getElementById('resource-grid');
const start = (state.currentPage - 1) * state.perPage;
const paginated = data.slice(start, start + state.perPage);
grid.innerHTML = paginated.map(r => `
${r.category}
${r.title}
${r.desc}
Preview
๐พ
`).join('');
updatePagination(data.length);
}
// 3. Search & Filter
document.getElementById('resource-search').addEventListener('input', (e) => {
const val = e.target.value.toLowerCase();
state.filtered = state.resources.filter(r =>
r.title.toLowerCase().includes(val) || r.category.toLowerCase().includes(val)
);
state.currentPage = 1;
render();
});
// 4. Bookmark & Toast System
function toggleBookmark(id) {
const index = state.bookmarks.indexOf(id);
if(index > -1) {
state.bookmarks.splice(index, 1);
showToast("Removed from bookmarks");
} else {
state.bookmarks.push(id);
showToast("Saved successfully!");
}
localStorage.setItem('fithub_bookmarks', JSON.stringify(state.bookmarks));
}
function showToast(msg) {
const toast = document.createElement('div');
toast.className = 'toast';
toast.textContent = msg;
document.body.appendChild(toast);
setTimeout(() => toast.remove(), 3000);
}
// 5. Dark Mode Logic
document.getElementById('theme-toggle').addEventListener('click', () => {
document.body.classList.toggle('dark-mode');
state.theme = document.body.classList.contains('dark-mode') ? 'dark' : 'light';
localStorage.setItem('dark-mode', state.theme);
});
// 6. Calculator Engine (BMI Example)
function calculateBMI(weight, height) {
const bmi = (weight / ((height/100) ** 2)).toFixed(1);
showToast(Your BMI is ${bmi});
return bmi;
}
// 7. Scroll Progress
window.addEventListener('scroll', () => {
const winScroll = document.body.scrollTop || document.documentElement.scrollTop;
const height = document.documentElement.scrollHeight - document.documentElement.clientHeight;
document.getElementById('progress-bar').style.width = (winScroll / height) * 100 + "%";
});
// 8. Performance & Initialization
document.addEventListener('DOMContentLoaded', () => {
render();
if(state.theme === 'dark') document.body.classList.add('dark-mode');
});
// 9. Keyboard Navigation
document.addEventListener('keydown', (e) => {
if(e.key === '/') document.getElementById('resource-search').focus();
});
Why Choose Our Fitness Hub
๐ฌ Science Based Verified by sports medicine professionals.
⚡ Expert Plans Structured programs for every skill level.
๐ฅ Nutrition Tools Calculate macros and track intake.
๐ Progress Tracking Visualize your fitness evolution.
Core Disciplines
๐
Strength Explore
๐ฅ
Fat Loss Explore
๐ฅ
Nutrition Explore
๐ง
Yoga Explore
Trusted by 10k+ Athletes
"Changed my life!"
- Sarah J, USA
"The best data tools."
- Mark R, UK
Frequently Asked Questions
How to use BMI Calculator? Input your height and weight to calculate.
Are supplements necessary? Diet comes first; supplements are optional.
Is this for beginners? Yes, we offer specialized onboarding.
Medical Disclaimer: This hub provides educational content for fitness tracking and general wellness. It is not medical advice. Consult a professional physician before starting any exercise or diet program.
FITHUB The Future of Fitness.
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