Apa yang dimaksud dengan tekanan osmotik? Bagaimana proses terjadinya? Yuk, sama-sama belajar materi kimia tentang tekanan osmotik dengan membaca artikel ini!
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Hai, teman-teman! Kamu tahu nggak sih, tekanan osmotik itu sering terjadi dalam kehidupan sehari-hari kita, lho! Salah satu contohnya yaitu peristiwa berpindahnya air yang terserap dalam tanah menuju sel akar tanaman.
Bingung, ya? Atau mungkin kamu belum familiar ya, dengan istilah tekanan osmotik?
Apa sih, yang dimaksud dengan tekanan osmotik? Bagaimana proses terjadinya? Yuk, baca penjelasannya bersama!
Osmosis dan Tekanan Osmotik
Osmosis adalah peristiwa difusi atau perpindahan pelarut dari suatu larutan yang lebih encer atau pelarut murni ke larutan yang lebih pekat melalui membran semipermeabel yang hanya dapat ditembus oleh pelarut tersebut. Jadi, molekul pelarut akan melewati membran semipermeabel dari larutan yang konsentrasinya rendah menuju larutan yang lebih pekat. Perpindahan ini akan terus terjadi hingga tercapainya kesetimbangan.
Dalam sistem osmosis, dikenal larutan hipertonik (larutan yang mempunyai konsentrasi terlarut tinggi), larutan hipotonik (larutan dengan konsentrasi terlarut rendah), dan larutan isotonik (dua larutan yang mempunyai konsentrasi terlarut sama). Nah, dalam proses osmosis, molekul pelarut berpindah dari larutan yang konsentrasinya rendah menuju larutan yang lebih pekat, berarti molekul pelarut berpindah dari larutan hipotonik ke larutan hipertonik.
Lalu, apa yang dimaksud dengan tekanan osmotik? Tekanan osmotik adalah tekanan hidrostatik yang terbentuk dalam larutan yang lebih pekat saat osmosis terjadi. Tekanan osmotik inilah yang akan mempertahankan kesetimbangan osmotik antara suatu larutan dan pelarut murninya yang dipisahkan oleh membran semipermeabel. Dengan kata lain, tekanan osmotik adalah tekanan yang diperlukan untuk menghentikan osmosis. Tekanan osmotik ini merupakan salah satu sifat koligatif larutan.
Proses Terjadinya Osmosis
Supaya kamu lebih paham, coba perhatikan gambar di bawah ini!
Proses osmosis dengan membran semipermeabel (Sumber: slideshare.net)
Pada gambar tersebut, terdapat dua wadah A dan B. Wadah A diisi dengan air murni, sedangkan wadah B diisi dengan suatu larutan. Keduanya dipisahkan oleh membran semipermeabel yang hanya bisa dilalui oleh molekul air saja.
Gambar (a) menggambarkan kondisi awal. Kemudian, karena konsentrasi larutan B lebih besar, maka akan terjadi proses osmosis, di mana air murni akan pindah ke larutan B melewati membran semipermeabel.
Setelah beberapa lama, kondisinya akan tampak seperti pada gambar (b). Permukaan larutan B menjadi naik, sedangkan permukaan air murni turun. Nah, proses osmosis ini terus terjadi dan baru berhenti ketika air murni dan larutan B mencapai kesetimbangan osmotik. Nah, kesetimbangan osmotik pada gambar (b) disebabkan oleh tekanan hidrostatik yang terbentuk dalam larutan B saat osmosis terjadi, yang dikenal juga dengan tekanan osmotik. Tekanan osmotik akan mempertahankan kesetimbangan osmotik pada larutan A dan B.
Namun, kondisi pada gambar (b) bisa dikembalikan lagi ke keadaan awal seperti pada gambar (a). Caranya adalah dengan memberikan tekanan luar yang besarnya sama dengan tekanan osmotiknya, seperti terlihat pada gambar (c).
Baca juga: Berkenalan dengan Alkohol, Salah Satu Senyawa Turunan Alkana
Nah, setelah memahami apa itu tekanan osmotik, sekarang kita belajar cara menghitungnya yuk!
Menghitung Tekanan Osmotik
Tekanan osmotik dilambangkan dengan tanda π. Nilai π dari suatu larutan dapat dihitung menggunakan persamaan van’t Hoff seperti berikut.
Keterangan:
π = Tekanan osmotik (atm atau Pa)
V = Volume larutan (L atau dm³)
n = Mol zat terlarut (mol)
R = 0,082 L atm/mol K = 8,314 m³ Pa/mol K
T = Suhu
Kalau kamu perhatikan dari persamaan penjelasan di atas, terlihat bahwa nilai tekanan osmotik hanya bergantung pada jumlah partikel zat terlarut dalam larutan yang dinyatakan dengan kemolaran larutan. Nah kalau sudah paham, sekarang coba simak contoh soal di bawah ini ya!
Contoh Soal
Berapa tekanan osmotik suatu larutan naftalen (C10H8) dalam benzena yang mengandung 10 g naftalen per satu liter larutan jika suhu larutannya adalah 15°C?
Pembahasan:
Jumlah mol naftalen:
Kemolaran larutan:
Tekanan osmotik:
Gimana, teman-teman? Mudah, bukan?
Sekian pembahasan kita mengenai materi tekanan osmotik. Kalau kamu mau menguji kemampuan diri dengan materi lainnya, kamu bisa melakukannya dengan men-download ruangbelajar! Yuk, download sekarang!
Artikel ini telah diperbarui pada 18 Agustus 2021.
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<h1 class="content-title">
Apa Itu Tekanan Osmotik dan Bagaimana Prosesnya? | Kimia Kelas 12 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/kenya-swawikanti" class="">Kenya Swawikanti</a> </p>
<p class="content-info"><span>August 19, 2021 • </span> <span>4 minutes read</span></p>
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<p><span style="font-weight: 400;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Tekanan%20Osmotik.jpg" alt="Tekanan Osmotik" width="820" loading="lazy" style="width: 820px; margin-left: auto; margin-right: auto; display: block;"></span></p>
<blockquote>
<p style="text-align: center;"><span style="font-size: 16px;"><em><span style="font-weight: 400;"><span style="color: #000000;">Apa yang dimaksud dengan tekanan osmotik? Bagaimana proses terjadinya? Yuk, sama-sama belajar materi kimia tentang tekanan osmotik dengan membaca artikel ini!</span></span></em></span></p>
<p style="text-align: center;"><span style="font-size: 16px;"><em><span style="font-weight: 400;"><span style="color: #000000;">—</span></span></em></span></p>
</blockquote>
<p><span id="more-4708"></span></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><span style="font-weight: 400;"><span style="color: #000000;">Hai, teman-teman! Kamu tahu nggak sih, tekanan osmotik itu sering terjadi dalam kehidupan sehari-hari kita, lho! Salah satu contohnya yaitu peristiwa </span></span><span style="font-weight: 400;"><span style="color: #000000;">berpindahnya air yang terserap dalam tanah menuju </span></span><span style="background-color: transparent; font-size: 1rem;">sel akar tanaman.</span><span style="font-weight: 400;"><span style="color: #000000;"><span style="color: #000000;"></span></span></span></p>
<p style="text-align: justify;"><span style="background-color: transparent; font-size: 1rem;">Bingung, ya? Atau mungkin kamu belum familiar ya, dengan istilah tekanan osmotik?</span></p>
<p style="text-align: justify;"><span style="font-weight: 400;"><span style="color: #000000;"><span style="color: #000000;">Apa sih, yang dimaksud dengan tekanan osmotik? B</span></span></span><span style="font-weight: 400;"><span style="color: #000000;"><span style="color: #000000;">agaimana proses terjadinya</span>? </span></span><span style="font-weight: 400;"><span style="color: #000000;">Yuk, baca penjelasannya bersama!</span></span><span style="font-weight: 400;"></span><span style="font-weight: 400;"></span></p>
<p style="text-align: justify;"> </p>
<h2 style="text-align: justify; font-size: 20px; font-weight: bold;"><span style="color: #000000;">Osmosis dan Tekanan Osmotik</span></h2>
<p style="text-align: justify;"><span style="font-weight: 400;">Osmosis adalah peristiwa <span style="font-weight: bold;">difusi</span> <span style="font-weight: bold;">atau perpindahan pelarut dari suatu larutan yang lebih encer atau pelarut murni ke larutan yang lebih pekat melalui membran semipermeabel yang hanya dapat ditembus oleh pelarut tersebut</span>. Jadi, molekul pelarut akan melewati membran semipermeabel dari larutan yang konsentrasinya rendah menuju larutan yang lebih pekat. Perpindahan ini akan terus terjadi hingga tercapainya <span style="font-weight: bold;">kesetimbangan</span>.</span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Dalam sistem osmosis, dikenal larutan hipertonik (larutan yang mempunyai konsentrasi terlarut tinggi), larutan hipotonik (larutan dengan konsentrasi terlarut rendah), dan larutan isotonik (dua larutan yang mempunyai konsentrasi terlarut sama). Nah, dalam proses osmosis, molekul pelarut berpindah dari larutan yang konsentrasinya rendah menuju larutan yang lebih pekat, berarti molekul pelarut berpindah </span><span style="font-weight: 400;"><span style="font-weight: bold;">dari larutan hipotonik ke larutan hipertonik</span>. </span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Lalu, apa yang dimaksud dengan tekanan osmotik? Tekanan osmotik adalah <span style="font-weight: bold;">tekanan hidrostatik yang terbentuk dalam larutan yang lebih pekat saat osmosis terjadi</span>. Tekanan osmotik inilah yang </span><span style="font-weight: 400;">akan <span style="font-weight: bold;">mempertahankan kesetimbangan osmotik </span><span style="font-weight: normal;">antara suatu larutan dan pelarut murninya yang dipisahkan oleh membran semipermeabel</span>. Dengan kata lain, tekanan osmotik adalah tekanan yang diperlukan untuk menghentikan osmosis. Tekanan osmotik ini merupakan salah satu <a href="/blog/mengetahui-pengertian-sifat-koligatif-pada-larutan" rel="noopener"><span style="font-weight: bold;">sifat koligatif larutan</span></a>.</span></p>
<p style="text-align: justify;"> </p>
<h2 style="text-align: justify; font-weight: bold; font-size: 20px;"><span style="color: #000000;">Proses Terjadinya Osmosis</span></h2>
<p style="text-align: justify;"><span style="font-weight: 400;"></span><span style="font-weight: 400;">Supaya kamu lebih paham, coba perhatikan gambar di bawah ini!</span></p>
<p style="text-align: justify;"> </p>
<p><span style="font-weight: 400;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/tekanan%20osmotik%201.jpg" caption="false" data-constrained="true" style="width: 600px; display: block; margin-left: auto; margin-right: auto;" alt="Proses osmosis" title="tekanan osmotik" width="600"></span></p>
<p style="text-align: center;"><em><span style="font-weight: 400;">Proses osmosis dengan membran semipermeabel (Sumber: slideshare.net)</span></em></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><span style="font-weight: 400;">Pada gambar tersebut, terdapat dua wadah A dan B. Wadah A diisi dengan air murni, sedangkan wadah B diisi dengan suatu larutan. Keduanya dipisahkan oleh membran semipermeabel yang hanya bisa dilalui oleh molekul air saja.</span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Gambar (a) menggambarkan kondisi awal. Kemudian, karena konsentrasi larutan B lebih besar, maka akan terjadi proses <span style="font-weight: bold;">osmosis</span>, di mana air murni akan pindah ke larutan B melewati membran semipermeabel. </span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Setelah beberapa lama, kondisinya</span><span style="font-weight: 400;"> akan tampak seperti pada gambar (b). </span><span style="font-weight: 400;">Permukaan larutan B menjadi naik, sedangkan permukaan air murni turun. Nah, </span><span style="background-color: transparent; font-size: 1rem;">proses osmosis ini terus terjadi dan baru </span><span style="font-weight: bold;">berhenti</span><span style="background-color: transparent; font-size: 1rem;"> ketika air murni dan larutan B mencapai </span><span style="font-weight: bold;">kesetimbangan osmotik</span><span style="background-color: transparent; font-size: 1rem;">. </span><span style="background-color: transparent; font-size: 1rem;">Nah, kesetimbangan osmotik pada gambar (b) disebabkan oleh tekanan hidrostatik yang terbentuk dalam larutan B saat osmosis terjadi, yang dikenal juga dengan <span style="font-weight: bold;">tekanan osmotik</span>. </span><span style="background-color: transparent; font-size: 1rem;">Tekanan osmotik akan </span><span style="font-weight: bold;">mempertahankan kesetimbangan osmotik</span><span style="background-color: transparent; font-size: 1rem;"> pada larutan A dan B. </span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Namun, kondisi pada gambar (b) bisa dikembalikan lagi ke keadaan awal seperti pada gambar (a). Caranya adalah dengan memberikan <span style="font-weight: bold;">tekanan luar yang besarnya sama dengan tekanan osmotiknya</span>, seperti terlihat pada gambar (c).</span></p>
<p style="text-align: justify; font-weight: bold;">Baca juga: <a href="/blog/senyawa-turunan-alkana-alkohol" rel="noopener">Berkenalan dengan Alkohol, Salah Satu Senyawa Turunan Alkana</a></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Nah, setelah memahami apa itu tekanan osmotik, sekarang kita belajar cara menghitungnya yuk!</span></p>
<p style="text-align: justify;"> </p>
<h2 style="text-align: justify; font-size: 20px;"><span style="font-weight: 400; color: #000000;"><span style="font-weight: bold;">Menghitung Tekanan Osmotik</span> </span></h2>
<p style="text-align: justify;"><span style="color: #000000;"><span style="font-weight: 400;">Tekanan osmotik dilambangkan dengan tanda π. </span><span style="font-weight: 400;">Nilai π dari suatu larutan dapat dihitung menggunakan persamaan van’t Hoff seperti berikut.</span></span></p>
<p style="line-height: 1em;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/rumus%20tekanan%20osmotik.png" alt="rumus tekanan osmotik" width="232" loading="lazy" style="width: 232px;"></p>
<p style="line-height: 1em;"><span style="font-weight: 400;">Keterangan:</span></p>
<p style="line-height: 1em;"><span style="font-weight: 400;">π = Tekanan osmotik (atm atau Pa)</span></p>
<p style="line-height: 1em;"><span style="font-weight: 400;">V </span><span style="font-weight: 400;"> </span><span style="font-weight: 400;">= Volume larutan (L atau dm</span><span style="font-weight: 400;">³</span><span style="font-weight: 400;">)</span></p>
<p style="line-height: 1em;"><span style="font-weight: 400;">n </span><span style="font-weight: 400;"> </span><span style="font-weight: 400;">= Mol zat terlarut (mol)</span></p>
<p style="line-height: 1em;"><span style="font-weight: 400;">R = 0,082 L atm/mol K = 8,314 m³ Pa/mol K</span></p>
<p style="line-height: 1em;"><span style="font-weight: 400;">T </span><span style="font-weight: 400;"> </span><span style="font-weight: 400;">= Suhu</span><span style="font-weight: 400;"></span></p>
<p style="line-height: 1em;"> </p>
<p style="text-align: justify;"><span style="font-weight: 400;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Jacobus%20Henricus%20vant%20Hoff%20Jr..jpg" alt="Jacobus Henricus vant Hoff Jr." width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></span></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><span style="font-weight: 400;">Kalau kamu perhatikan dari persamaan penjelasan di atas, terlihat bahwa nilai tekanan osmotik hanya bergantung pada jumlah partikel zat terlarut dalam larutan yang dinyatakan dengan kemolaran larutan. Nah kalau sudah paham, sekarang coba simak contoh soal di bawah ini ya!<br /></span></p>
<p style="text-align: justify;"> </p>
<h2 style="text-align: justify; font-weight: bold; font-size: 20px;"><span style="color: #000000;">Contoh Soal</span></h2>
<p style="text-align: justify;"><span style="font-weight: 400;">Berapa tekanan osmotik suatu larutan naftalen (C<sub>10</sub>H<sub>8</sub>) dalam benzena yang mengandung 10 g naftalen per satu liter larutan jika suhu larutannya adalah 15°C?</span><span style="font-weight: 400;"></span></p>
<p style="text-align: justify; font-weight: bold;">Pembahasan:</p>
<p style="text-align: justify; font-weight: normal;">Jumlah mol naftalen:</p>
<p style="text-align: justify; font-weight: normal;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/pembahasan%201.png" alt="pembahasan 1" width="300" loading="lazy" style="width: 300px;"></p>
<p style="text-align: justify; font-weight: normal;">Kemolaran larutan:</p>
<p style="text-align: justify; font-weight: normal;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/pembahasan%202.png" alt="pembahasan 2" width="288" loading="lazy" style="width: 288px;"></p>
<p style="text-align: justify; font-weight: normal;">Tekanan osmotik:</p>
<p style="text-align: justify;"><span style="font-weight: 400;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/pembahasan%203.png" alt="pembahasan 3" width="665" loading="lazy" style="width: 665px;"></span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Gimana, teman-teman? Mudah, bukan? </span></p>
<p style="text-align: justify;"><span style="font-weight: 400;">Sekian pembahasan kita mengenai materi tekanan osmotik. Kalau kamu mau menguji kemampuan diri dengan materi lainnya, kamu bisa melakukannya dengan men-<em>download</em> <strong><a href="/ruangbelajar" rel="noopener" target="_blank">ruangbelajar</a></strong>! Yuk, <span style="font-style: italic;">download</span> sekarang!</span></p>
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<p style="font-weight: bold;"><em><span style="font-weight: 400;"><span style="font-weight: bold;">Artikel ini telah diperbarui pada 18 Agustus 2021.</span></span></em></p>
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<img src="https://cdn-web-2.ruangguru.com/static/tiktok.png" loading=" lazy" alt="Logo TikTok Footer" width="32px" height="32px" />
</picture>
</a>
</nav>
</div>
<p class="footer-copyright">
© 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>
<!-- Tracker -->
<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>