Pada artikel Fisika kelas 11 ini, kita akan mengenal kamera, salah satu alat optik yang berfungsi untuk menangkap bayangan dan membentuknya di pelat film.
—
“Rogu, fotoin aku di sini dong”, kata Gita.
“Aduh jelek akunya lagi ngedip! Hapus dong, foto lagi!”
Foto, jelek, hapus. Foto, jelek, hapus. Itulah yang bisa terjadi jika kamu menggunakan kamera digital. Jika hasilnya tidak sesuai keinginanmu, kamu bisa menghapusnya lalu mengambil fotonya ulang. Hal tersebut tidak bisa kamu lakukan jika kamu menggunakan kamera analog saat mengambil foto. Kenapa ya?
Kamera analog masih menggunakan roll film dan tidak bisa diproses secara elektronik. Tidak ada memory card, baterai, dan hasilnya tidak bisa diakses melalui komputer.
Kamu tidak akan tahu hasilnya bagus atau tidak, jadi kalau kamu lagi ngedip, mangap, atau bahkan ketutupan orang, ya ikhlasin aja. Nggak akan bisa dihapus! Makanya itu, orang yang mengambil foto dengan kamera analog biasanya lebih berhati-hati, karena jumlah frame pada roll filmnya sangat terbatas.
Macam-Macam Kamera
Nah, buat kamu yang suka fotografi, jenis kamera apa sih yang kamu gunakan?
Sebagai salah satu alat optik, kamera memiliki banyak jenis lho. Ada kamera analog atau kamera film, kamera polaroid, ataupun kamera digital. Fungsi mereka semua sama, yaitu untuk menangkap bayangan. Pada kamera analog, bayangan akan terbentuk pada film yang ada di dalamnya.
Baca Juga: Alat Optik: Pengertian, Macam-Macam, Fungsi & Contoh
Sekarang ini, kamera analog yang dulu sempat ditinggalkan sudah kembali booming lho. Jadi orang-orang nggak hanya menggunakan kamera digital, tapi kamera analog pun juga mulai digunakan lagi. Apakah kamu salah satunya atau tertarik untuk mencobanya? Jika iya, yuk kita belajar tentang kamera analog!
Joseph-Nicephore Niepce, sang ilmuwan yang menciptakan kamera.
Sejarah Perkembangan Kamera
Pada awal abad ke-21, kamera analog sempat ditinggalkan karena datangnya kamera digital, mulai dari kamera compact, DSLR (Digital Single Lens Reflex), Mirrorless, dan bahkan kamera smartphone.
Hasil dari kamera analog harus dicuci cetak melalui proses kimia, dan menunggu hasilnya memang agak lama sih. Mungkin karena itu ya kamera analog sempat kalah saing dengan kamera digital. Justru saat ini kamera analog kembali booming, dan sekarang baik dari kamera, roll filmnya, dan tempat cuci cetaknya pun sekarang mudah ditemukan.
Bagian-Bagian Kamera Analog
Apa saja ya bagian-bagian dari kamera analog?
Seperti yang kamu lihat, pada bagian kamera analog terdapat film. Film yang menjadi wadah untuk merekam gambar ini terbuat dari pelat seluloid. Pelat tersebut dilapisi dengan gelatin dan perak bromida untuk menghasilkan film negatifnya.
Baca Juga: Kenali Bagian-Bagian Mikroskop & Cara Menggunakannya, Yuk!
Film negatif tersebut dipakai untuk menghasilkan hasil positif atau foto asli dengan cara ‘dicuci’. Kamu pasti tidak asing kan dengan kata-kata “cuci foto”? Mencuci foto bukan berarti mencuci dengan sabun seperti kita sehari-hari ya, tetapi plat film tersebut dicuci dengan bahan kimia tertentu.
Fungsi film pada kamera sama halnya dengan retina pada mata loh, karena memang sebenarnya prinsip kerja kamera hampir sama dengan mata. Misalnya, otot siliaris pada mata prinsip kerjanya hampir sama dengan lensa pada kamera.
Pada mata, jarak fokus dapat diubah dengan cara mengatur ketegangan otot siliaris agar bayangan terbentuk di retina. Sedangkan pada kamera, letak bayangan dapat diatur dengan cara mengatur jarak lensa agar bayangan terbentuk di film. Nah, sekarang udah kebayang kan persamaannya di mana?
Selain otot siliaris dan lensa, bagian mata dan bagian kamera lain yang juga memiliki fungsi yang sama. Yuk lihat tabel di bawah ini!
Bagian mata dan kamera yang memiliki fungsi yang sama.
Jika prinsip kerja pada lensa dan kamera hampir sama, bagaimana ya dengan pembentukan bayangannya? Penasaran kan? Nah, kamu bisa belajar lebih lanjut tentang kamera berikut dengan pembentukan bayangannya di Ruangbelajar.
Kamu bisa mempelajari materi ini dalam bentuk video animasi yang menarik dan nggak akan bikin kamu bosan belajar. Yuk download aplikasi Ruangguru sekarang!
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<h1 class="content-title">
Mengenal Kamera, Alat Optik yang Bisa Menangkap Bayangan | Fisika Kelas 11 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/shabrina-zakaria" class="">Shabrina Zakaria</a> </p>
<p class="content-info"><span>February 17, 2025 • </span> <span>4 minutes read</span></p>
<br />
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<p style="text-align: justify;"><em><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/012fa5e9-2f8d-4f01-b8ca-c67d36696892.png" alt="alat optik - kamera" /></em></p>
<blockquote>
<div style="text-align: center;">
<p><em>Pada <strong><a href="https://www.ruangguru.com/blog/c/fisika/fisika-sma-kelas-11">artikel Fisika kelas 11</a></strong> ini, kita akan mengenal kamera, salah satu alat optik yang berfungsi untuk menangkap bayangan dan membentuknya di pelat film.</em></p>
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</blockquote>
<p style="text-align: center;">—</p>
<p> </p>
<p style="text-align: justify;">“Rogu, fotoin aku di sini <em>dong</em>”, kata Gita.</p>
<p style="text-align: justify;">“Aduh jelek akunya lagi <em>ngedip</em>! Hapus <em>dong</em>, foto lagi!”</p>
<p style="text-align: justify;">Foto, jelek, hapus. Foto, jelek, hapus. Itulah yang bisa terjadi jika kamu menggunakan kamera digital. Jika hasilnya tidak sesuai keinginanmu, kamu bisa menghapusnya lalu mengambil fotonya ulang. Hal tersebut tidak bisa kamu lakukan jika kamu menggunakan kamera analog saat mengambil foto. Kenapa ya?</p>
<p style="text-align: justify;">Kamera analog masih menggunakan <em>roll </em>film dan tidak bisa diproses secara elektronik. Tidak ada <em>memory card</em>, baterai, dan hasilnya tidak bisa diakses melalui komputer.</p>
<p style="text-align: justify;">Kamu tidak akan tahu hasilnya bagus atau tidak, jadi kalau kamu lagi <em>ngedip</em>, <em>mangap</em>, atau bahkan <em>ketutupan</em> orang, ya ikhlasin <em>aja</em>. <em>Nggak</em> akan bisa dihapus! Makanya itu, orang yang mengambil foto dengan kamera analog biasanya lebih berhati-hati, karena jumlah frame pada <em>roll</em> filmnya sangat terbatas.</p>
<p> </p>
<h2 style="text-align: justify;"><span style="font-size: 18pt;">Macam-Macam Kamera</span></h2>
<p style="text-align: justify;">Nah, buat kamu yang suka fotografi, jenis kamera apa sih yang kamu gunakan?</p>
<div>
<p style="text-align: justify;">Sebagai salah satu alat optik, kamera memiliki banyak jenis lho. Ada <strong>kamera analog atau kamera film, kamera polaroid, ataupun kamera digital</strong>. Fungsi mereka semua sama, yaitu untuk menangkap bayangan. Pada kamera analog, bayangan akan terbentuk pada film yang ada di dalamnya.</p>
<p style="text-align: justify;"><strong>Baca Juga: <a href="https://www.ruangguru.com/blog/alat-optik">Alat Optik: Pengertian, Macam-Macam, Fungsi & Contoh</a></strong></p>
<p style="text-align: justify;">Sekarang ini, kamera analog yang dulu sempat ditinggalkan sudah kembali booming <em>lho</em>. Jadi orang-orang nggak hanya menggunakan kamera digital, tapi kamera analog pun juga mulai digunakan lagi. Apakah kamu salah satunya atau tertarik untuk mencobanya? Jika iya, <em>yuk </em>kita belajar tentang kamera analog!</p>
<p style="text-align: justify;"><img decoding="async" style="width: 600px; display: block; margin: 0px auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/kamera%20alat%20optik%20-%20tahukah%20kamu.png" alt="kamera alat optik - tahukah kamu" width="600" /></p>
<p style="text-align: center;"><em>Joseph-Nicephore Niepce, sang ilmuwan yang menciptakan kamera.</em></p>
<p> </p>
<h2 style="text-align: justify;"><span style="font-size: 18pt;">Sejarah Perkembangan Kamera</span></h2>
<p style="text-align: justify;">Pada awal abad ke-21, kamera analog sempat ditinggalkan karena datangnya kamera digital, mulai dari kamera <em>compact</em>, <em>DSLR</em> (<em>Digital Single Lens Reflex</em>), <em>Mirrorless</em>, dan bahkan kamera <em>smartphone</em>.</p>
<p style="text-align: justify;">Hasil dari kamera analog harus dicuci cetak melalui proses kimia, dan menunggu hasilnya memang agak lama <em>sih</em>. Mungkin karena itu ya kamera analog sempat kalah saing dengan kamera digital. Justru saat ini kamera analog kembali <em>booming, </em>dan sekarang baik dari kamera, <em>roll</em> filmnya, dan tempat cuci cetaknya pun sekarang mudah ditemukan.</p>
<p> </p>
<h2 style="text-align: justify;"><span style="font-size: 18pt;">Bagian-Bagian Kamera Analog</span></h2>
<p style="text-align: justify;">Apa saja ya bagian-bagian dari kamera analog?</p>
<p style="text-align: justify;"><img decoding="async" style="width: 600px; display: block; margin: 0px auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/kamera%20alat%20optik%20-%20infografik.png" alt="kamera alat optik - infografik" width="600" /></p>
<p> </p>
<p style="text-align: justify;">Seperti yang kamu lihat, pada bagian kamera analog terdapat film. Film yang menjadi wadah untuk merekam gambar ini terbuat dari pelat seluloid. Pelat tersebut dilapisi dengan gelatin dan perak bromida untuk menghasilkan film negatifnya.</p>
<p style="text-align: justify;"><strong>Baca Juga: <a href="https://www.ruangguru.com/blog/ipa-kelas-7-yuk-belajar-menggunakan-mikroskop">Kenali Bagian-Bagian Mikroskop & Cara Menggunakannya, Yuk!</a></strong></p>
<p style="text-align: justify;">Film negatif tersebut dipakai untuk menghasilkan hasil positif atau foto asli dengan cara ‘dicuci’. Kamu pasti tidak asing kan dengan kata-kata “cuci foto”? Mencuci foto bukan berarti mencuci dengan sabun seperti kita sehari-hari ya, tetapi plat film tersebut dicuci dengan bahan kimia tertentu.</p>
<p style="text-align: justify;"><img decoding="async" style="width: 600px; display: block; margin: 0px auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/kamera%20alat%20optik%20-%20negatif%20film.png" alt="kamera alat optik - negatif film" width="600" /></p>
<p> </p>
<p style="text-align: justify;">Fungsi film pada kamera sama halnya dengan retina pada mata <em>loh</em>, karena memang sebenarnya prinsip kerja kamera hampir sama dengan mata. Misalnya, otot siliaris pada mata prinsip kerjanya hampir sama dengan lensa pada kamera.</p>
<p style="text-align: justify;">Pada mata, jarak fokus dapat diubah dengan cara mengatur ketegangan otot siliaris agar bayangan terbentuk di retina. Sedangkan pada kamera, letak bayangan dapat diatur dengan cara mengatur jarak lensa agar bayangan terbentuk di film. <em>Nah</em>, sekarang udah kebayang kan persamaannya di mana?</p>
<p style="text-align: justify;">Selain otot siliaris dan lensa, <strong><a href="https://www.ruangguru.com/blog/bagian-bagian-mata">bagian mata</a></strong> dan bagian kamera lain yang juga memiliki fungsi yang sama. <em>Yuk</em> lihat tabel di bawah ini!</p>
<p style="text-align: justify;"><img decoding="async" style="width: 600px; display: block; margin: 0px auto;" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/kamera%20alat%20optik%20-%20mata%20vs%20kamera.png" alt="kamera alat optik - mata vs kamera" width="600" /></p>
<p style="text-align: center;"><em>Bagian mata dan kamera yang memiliki fungsi yang sama.</em></p>
<p> </p>
<p style="text-align: justify;">Jika <strong>prinsip kerja pada lensa dan kamera</strong> hampir sama, bagaimana ya dengan pembentukan bayangannya? Penasaran <em>kan</em>? <em>Nah</em>, kamu bisa belajar lebih lanjut tentang kamera berikut dengan pembentukan bayangannya di <a href="https://ruangguru.onelink.me/blPk/eaff0eb9"><strong>Ruangbelajar</strong></a>.</p>
<p style="text-align: justify;">Kamu bisa mempelajari materi ini dalam bentuk video animasi yang menarik dan nggak akan bikin kamu bosan belajar. <em>Yuk</em> download aplikasi Ruangguru sekarang!</p>
<p style="text-align: justify;"><a href="https://ruangguru.onelink.me/blPk/eaff0eb9"><img decoding="async" class="aligncenter size-medium" src="https://cdn-web-2.ruangguru.com/landing-pages/assets/db778458-24ca-48f0-9929-5c43c5147be0.jpeg" alt="cta ruangbelajar" /></a></p>
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<a href="https://www.ruangguru.com/blog/tag/fisika-xi" rel="tag">Fisika XI</a> <a href="https://www.ruangguru.com/blog/tag/kelas-11" rel="tag">Kelas 11</a> <a href="https://www.ruangguru.com/blog/tag/konsep-pelajaran" rel="tag">Konsep Pelajaran</a> <a href="https://www.ruangguru.com/blog/tag/sma" rel="tag">SMA</a> </div>
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<h5 class="author-title">Shabrina Zakaria</h5>
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let windowHeight = window.innerHeight;
let promosLength = 11;
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<div class="office">
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</a>
<address>
<p class="hq">RUANGGURU HQ</p>
<p>
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<nav class="footer-menu social d-none d-lg-block">
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<li><a href="https://ticketing.ruangguru.com/help?request_type_id=459" target="_blank">Vulnerability Report</a></li>
<li><a href="https://www.ruangguru.com/bantuan#layanan">Layanan Pengaduan</a></li>
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<li><a href="https://www.brainacademy.id/" target="_blank">Brain Academy</a></li>
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<li><a href="https://skillacademy.com/" target="_blank">Skill Academy</a></li>
<li><a href="https://www.ruangkerja.id/" target="_blank">Ruangkerja</a></li>
<li><a href="https://www.schoters.com/id/" target="_blank">Schoters</a></li>
<li><a href="https://www.kalananti.id/" target="_blank">Kalananti</a></li>
</ul>
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</div>
<div class="col-6 col-md-3">
<nav class="footer-menu">
<p class="title"> Coba GRATIS Aplikasi Ruangguru</p>
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<ul>
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</a>
</li>
<li>
<a target="_blank" rel="nofollow" href="https://play.google.com/store/apps/details?id=com.ruangguru.livestudents&hl=in">
<img src="https://cdn-web-2.ruangguru.com/static/googleplay.png" loading="lazy" alt="Button Google Play Footer " />
</a>
</li>
<li>
<a target="_blank" rel="nofollow" href="https://appgallery.huawei.com/#/app/C102352375">
<img src="https://cdn-web-2.ruangguru.com/static/huawei.png" loading="lazy" alt="Button AppGallery Footer " />
</a>
</li>
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<nav class="footer-menu social">
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<img src="https://cdn-web-2.ruangguru.com/static/instagram.png" loading="lazy" alt="Logo Instagram Footer" width="32px" height="32px" />
</picture>
</a>
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<picture>
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© 2026 All Rights Reserved PT. Ruang Raya Indonesia
</p>
</div>
<style>
.bantuan-container {
position: relative;
}
.bantuan-element {
position: fixed;
z-index: 999;
display: flex;
align-items: flex-end;
justify-content: flex-end;
cursor: pointer;
transition: all 0.6s ease;
}
.bantuan-top {
bottom: 11rem;
right: 2rem;
}
.bantuan-bottom {
bottom: 2rem;
right: 2rem;
}
.bantuan-top-2 {
bottom: 15rem;
right: 2rem;
}
.bantuan-top-3 {
bottom: 19rem;
right: 2rem;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 2rem;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 2rem;
}
@media (min-width: 768px) {
.bantuan-element img {
width: auto;
transition: all 0.4s ease;
}
.bantuan-top img {
width: 140px;
}
.bantuan-bottom img {
width: 140px;
}
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 140px;
}
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 140px;
}
.bantuan-element.clicked {
bottom: 9rem;
right: 2.5rem;
}
.bantuan-element.clicked img {
width: auto;
height: 64px;
}
}
@media (max-width: 767px) {
.bantuan-top {
bottom: 8rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom {
bottom: 2rem;
right: 1.25rem;
align-items: center;
}
.bantuan-top-2 {
bottom: 12rem;
right: 1rem;
align-items: center;
}
.bantuan-top-3 {
bottom: 16rem;
right: 1rem;
align-items: center;
}
.bantuan-bottom-2 {
bottom: 5rem;
right: 1.25rem;
align-items: center;
}
.bantuan-bottom-3 {
bottom: 8rem;
right: 1.25rem;
align-items: center;
}
.bantuan-element img {
width: auto;
}
.bantuan-top img,
.bantuan-top-2 img,
.bantuan-top-3 img {
width: 96px;
}
.bantuan-bottom img,
.bantuan-bottom-2 img,
.bantuan-bottom-3 img {
width: 96px;
}
}
.bantuan-element:hover {
transform: scale(1.05);
}
.bantuan-element img {
max-width: 100%;
height: auto;
}
</style>
<div id="bantuan-divs-container" style="position: relative" data-product="ruangguru" data-table="rg_floating_icon"></div>
<script>
class FloatingDivsComponent {
constructor(product = 'ruangguru', table = 'rg_floating_icon') {
this.container = document.getElementById('bantuan-divs-container');
this.floatingElements = [];
this.product = product;
this.table = table;
// Configuration
this.config = {
baseApiUrl: 'https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/rg_banner/views/',
apiKey: 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
maxElements: 2,
zIndexBase: 100,
};
// Build dynamic API URL based on table parameter
this.config.apiUrl = this.buildApiUrl();
this.init();
}
buildApiUrl() {
const baseUrl = this.config.baseApiUrl;
const tableName = this.table || 'rg_floating_icon';
const queryParams =
'offset=0&limit=99999&sort=rankPosition&where=(type,eq,floating)~and(showIn,anyof,blog)~and(hide,is,false)~and(product,eq,' +
this.product +
')&nested%5Bcta%5D%5Bfields%5D=Id,name,ctaId,imageUrl,ctaLink,targetUrl';
return `${baseUrl}${tableName}?${queryParams}`;
}
async init() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to initialize floating divs component:', error);
}
}
async fetchFloatingElements() {
try {
const options = {
method: 'GET',
headers: {
'xc-token': this.config.apiKey || 'vLyK3dJrDBRmOwueX2OJXibMkgsUbBk0WS4ua2p1',
},
};
const urlNoco = this.config.apiUrl;
const response = await fetch(urlNoco, options);
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
const data = await response.json();
this.floatingElements = this.processApiResponse(data);
} catch (error) {
console.error('Error fetching floating elements:', error);
throw error;
}
}
processApiResponse(data) {
if (!data || !data.list || !Array.isArray(data.list)) {
return [];
}
console.log(data.list);
// Ensure we only get maximum 2 elements
const limitedElements = data.list.slice(0, this.config.maxElements);
return limitedElements;
}
renderFloatingElements() {
if (!this.container || this.floatingElements.length === 0) {
return;
}
// Additional safeguard: ensure we never render more than maxElements
const elementsToRender = this.floatingElements.slice(0, this.config.maxElements);
// Clean up existing elements and their event listeners
this.cleanupExistingElements();
// Clear existing content
this.container.innerHTML = '';
elementsToRender.forEach((element, index) => {
const floatingDiv = this.createFloatingDiv(element, index);
this.container.appendChild(floatingDiv);
});
}
cleanupExistingElements() {
// Clear existing elements (no need for event listener cleanup with CSS approach)
const existingElements = this.container.querySelectorAll('[data-floating-element]');
existingElements.forEach(element => {
element.remove();
});
}
createFloatingDiv(element, index) {
const div = document.createElement('div');
const cta = element.cta[0]; // Use the first CTA
// Add data attribute for cleanup tracking
div.setAttribute('data-floating-element', 'true');
// Apply CSS classes based on rankPosition
const positionClass = this.getPositionClass(element.rankPosition, index);
div.className = `bantuan-element ${positionClass}`;
div.style.zIndex = this.config.zIndexBase + index;
// Create the link and image
const link = document.createElement('a');
link.href = 'https://cta.ruangguru.com/' + cta.ctaId || '#';
link.target = '_blank';
// Add tracking attributes
link.setAttribute('data-tracking-event-type', 'landing_page__core__item_click');
link.setAttribute(
'data-tracking-context',
JSON.stringify({
product_name: this.product,
cta_action: 'redirection',
cta_action_detail: link.href,
item_type: 'floating',
item_name: element.name || 'Floating element',
item_category: 'payment',
item_position: index,
item_serial: null,
section_type: 'floating_item',
section_position: 'body',
section_name: 'floating_item',
})
);
const img = document.createElement('img');
img.src = element.imageUrl + '?h=200&convert=webp';
img.alt = element.name || 'Floating element';
img.loading = 'lazy';
// Add click tracking
link.addEventListener('click', () => {
this.trackClick(element, cta);
});
link.appendChild(img);
div.appendChild(link);
return div;
}
getPositionClass(rankPosition, index) {
// Define positioning classes based on rankPosition
if (rankPosition === 1) {
return 'bantuan-top'; // Top position
} else if (rankPosition === 2) {
return 'bantuan-bottom'; // Bottom position
} else {
// For additional elements, distribute them evenly
return `bantuan-${index % 2 === 0 ? 'top' : 'bottom'}-${Math.floor(index / 2) + 1}`;
}
}
trackClick(element, cta) {
// Implement click tracking logic here
console.log('Floating element clicked:', {
elementId: element.Id,
elementName: cta.name,
ctaId: cta.ctaId,
targetUrl: cta.targetUrl,
});
}
// Public method to manually refresh
async refresh() {
try {
await this.fetchFloatingElements();
this.renderFloatingElements();
} catch (error) {
console.error('Failed to refresh floating elements:', error);
throw error;
}
}
// Public method to get current floating elements
getFloatingElements() {
return [...this.floatingElements];
}
}
// Initialize the component when DOM is ready
document.addEventListener('DOMContentLoaded', () => {
// Get product and table parameters from data attributes
const container = document.getElementById('bantuan-divs-container');
const product = container.getAttribute('data-product') || 'ruangguru';
const table = container.getAttribute('data-table') || 'rg_floating_icon';
new FloatingDivsComponent(product, table);
});
// Export for use in other modules if needed
if (typeof module !== 'undefined' && module.exports) {
module.exports = FloatingDivsComponent;
}
</script> <div id="wp-install-nudge" style="
position: fixed;
bottom: 0rem;
right: 0;
z-index: 999;
cursor: pointer;
"></div>
<script>
(function (w, d, s, o, f, js, fjs) {
w['Sales-Nudge-Widget'] = o; w[o] = w[o] || function () { (w[o].q = w[o].q || []).push(arguments) };
js = d.createElement(s), fjs = d.getElementsByTagName(s)[0];
js.id = o; js.src = f; js.async = 1; fjs.parentNode.insertBefore(js, fjs);
}(window, document, 'script', 'wpInstallNudge', 'https://cdn-web-2.ruangguru.com/sales-nudge/6198a95130/dist/widget.js'));
wpInstallNudge('init', { targetElementId: 'wp-install-nudge', clientTarget: 'ruangguru_blog' });
</script>
<script>
// note: disabled due to auto reload page
// var lastScrollTop = 0;
// $(window).scroll(function(event){
// var st = $(this).scrollTop();
// if (st > lastScrollTop){
// $('#wp-install-nudge').slideDown( "slow", function() {});
// } else {
// $('#wp-install-nudge').slideUp( "slow", function() {});
// }
// lastScrollTop = st;
// });
// $(document).ready(function () {
// $("#wp-install-nudge").hide();
// });
$('#wp-install-nudge').click(function(){
Analytics.track("promotion__install_nudge__click",
{
user_email: "ruangguru@blog.com",
cta_link: widgetData.dataConfig.target_link
}).catch((err) => {
console.log("tracker error", err);
});
});
</script>
</footer>
<div id="__next"></div>
<script type="speculationrules">
{"prefetch":[{"source":"document","where":{"and":[{"href_matches":"\/blog\/*"},{"not":{"href_matches":["\/blog\/wp-*.php","\/blog\/wp-admin\/*","\/blog\/wp-content\/uploads\/*","\/blog\/wp-content\/*","\/blog\/wp-content\/plugins\/*","\/blog\/wp-content\/themes\/ruangguru\/*","\/blog\/*\\?(.+)"]}},{"not":{"selector_matches":"a[rel~=\"nofollow\"]"}},{"not":{"selector_matches":".no-prefetch, .no-prefetch a"}}]},"eagerness":"conservative"}]}
</script>
<script>
async function getCtaDetails(ctaIds) {
const endpoint =
" https://gw.ruangguru.com/api/v3/rdb/p_ddgy8hjx5dxsqx/CTA/views/CTA?offset=0&limit=10&where=(ctaId,in," + ctaIds.toString() + ")";
try {
const response = await fetch(endpoint, {
headers: {
"xc-token": "-hG2nBDJzSj0agSgNtcJx97M4F02y54nUMoY6plJ",
},
});
const data = await response.json();
const ctaList = data?.list || [];
const ctaMap = new Map();
for (const ctaData of ctaList) {
ctaMap.set(ctaData.ctaId, ctaData);
}
return ctaMap;
} catch (error) {
console.error("Error fetching CTA details:", error);
return new Map();
}
}
async function replaceCTA() {
const regex = /{{cta\((‘(.*?)’|“(.*?)”)\)}}/g;
const bodyHTML = document.body.innerHTML;
const matches = Array.from(bodyHTML.matchAll(regex));
const ctaIds = matches.map((match) => {
let ctaId = match[2] ?? match[3];
return ctaId;
});
const ctaMap = await getCtaDetails(ctaIds);
const replacedHTML = bodyHTML.replace(regex, (match, _inner, ctaId1, ctaId2) => {
const ctaId = ctaId1 ?? ctaId2;
const ctaData = ctaMap.get(ctaId);
if (ctaData) {
return `<a href="https://cta.ruangguru.com/${ctaData.ctaId}" target="_${ctaData.targetType}" style="position:relative;display:inline-block;">
<img src="${ctaData.imageUrl}" loading="lazy" alt="${ctaData.altText}" />
</a>`;
} else {
return match;
}
});
document.body.innerHTML = replacedHTML;
}
</script>
<meta name="author" content="Ruangguru Tech Team">
<!-- Google Tag Manager (noscript) -->
<noscript><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-PVNLZFT" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
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<script type="text/javascript" src="https://cdn-web-2.ruangguru.com/landing-page-web/public/staticpages/global-assets/js/cta.js"></script>
<script src="https://unpkg.com/@dotlottie/player-component@latest/dist/dotlottie-player.mjs" type="module"></script>
</body>
</html>