Artikel ini membahas mengenai sistem sonar dan cara menghitung kedalaman laut.
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Kamu pernah kepikiran nggak, sih, seberapa dalam lautan itu? Bagian laut paling dalam yang pernah diukur manusia itu sekitar 10,9 km. Kalo kamu cemplungin Burj Khalifa, bangunan paling tinggi di dunia, kedalaman laut itu mencapai 13 gedung burj khalifah yang ditumpuk vertikal, loh! Lautan juga mencakup 2/3 dari permukaan planet kita. Wah, lautan ini luas dan dalam yah.
Lautan juga menyimpan banyak misteri, misalnya makhluk hidup yang belum pernah ditemukan sebelumnya, sumberdaya alam dan mineral, atau bahkan benda buatan manusia yang jatuh kelautan, seperti kapal laut atau pesawat.
Nah, untuk menyingkap semua misteri tadi, kita butuh sebuah gambaran tentang permukaan bawah air. Kita bisa membangun teknologi berdasarkan fenomena fisika. Semua itu memanfaatkan fenomena gelombang bunyi atau suara.
Tinggi satu gedung Burj Khalifa hanya sedalam 2,7 ft di bawah laut
(sumber: Tech Insider via Youtube)
Baca juga: Memahami Perbedaan Getaran dan Gelombang.
Lalu, gelombang suara kayak gimana yang dipakai? jadi, jawabannya adalah gelombang suara ultrasonik. Kamu harus tau nih, ultrasonik itu frekuensinya lebih dari 20.000Hz. Nah, gelombang ini dapat merambat dan menjalar pada air laut. Dengan mempelajari pergerakan gelombang bunyi ini, kita bisa loh memprediksi keberadaan benda-benda di dasar laut. Nah, teknologi yang memakai metode seperti ini bernama sonar atau sound navigation and ranging.
Terus, gimana sih cara kerja sistem sonar? Apa kita bisa mengukur kedalaman laut pakai sonar? Oke supaya jelas, baca artikel ini sampai habis ya!
Contoh dari sonar aktif yaitu Side Scan Sonar (SSS)
(Sumber : commons.wikimedia.org)
Sonar dan Sejarah Perkembangannya
Sonar (Sound Navigation and Ranging) adalah sistem perangkat untuk mendeteksi dan menentukan jarak benda yang ada di bawah laut. Kenapa yah sonar menggunakan gelombang suara ultrasonik? Padahal, kan, ada gelombang suara dengan rentang frekuensi yang lain. Nah, itu karena gelombang suara yang lain ini tidak bisa merambat jauh di dalam air. Sedangkan gelombang suara ultrasonik ini memiliki kemampuan unik untuk merambat dalam jarak yang jauh.
Terus, kenapa kita gak pake gelombang cahaya? Sayangnya, gelombang cahaya di dalam air ini tidak mampu merambat terlalu jauh karena sifat medium air laut yang mendifraksi berkas gelombang cahaya guys.
Sonar pertama kali dipakai untuk mendeteksi gunung es di bawah laut. Terus, dipakai juga di bidang militer untuk cari tahu kapal selam musuh dan ranjau. Sampai sekarang, sonar masih sering dipakai terutama untuk menemukan benda hilang di laut, dan untuk mengukur kedalaman laut. Sonar udah eksis banget dehh di kalangan nelayan modern. Berkat sonar, nelayan jadi lebih gampang untuk menemukan letak kumpulan ikan, tahu kondisi ombak, dan juga arus air laut.
Jenis Sonar
Ada dua jenis sonar, yaitu sonar aktif dan sonar pasif. Kita mulai bahas dari sonar pasif dulu ya!
Sonar pasif adalah sistem sonar yang dibuat pertama kali, loh! Sistem sonar pasif lebih sederhana dari sistem sonar aktif karena dia nggak mengirim sinyal atau gelombang suara. Jadi, cuma bisa mendeteksi gelombang suara yang datang ke arah penerima atau operator kapal dan hasilnya bisa dilihat di layar monitor. Makanya, sonar pasif cenderung nggak bisa mengukur jarak objek dan kedalaman laut. Tapi bisa untuk menentukan arah objek, dan terkadang dipakai untuk mendeteksi suara hewan laut, contohnya paus.
Karena sistem sonar pasif yang sangat terbatas dan adanya pengaruh kemajuan teknologi juga, maka dibuatlah sistem sonar aktif. Contoh dari sistem sonar aktif ada multibeam, side scan sonar (sss), split-beam, matess atau mine detection sonar system, dll.
Gimana sih cara kerja sonar aktif? Jadi, awalnya kapal mengirim pemancar (transmitter) gelombang suara ke dalam air pakai alat bernama transduser sonar. Fyi ya guys, transduser sonar itu alat yang mengubah sinyal listrik jadi gelombang suara di dalam laut.
Setelah itu, gelombang suara merambat di air dan nanti akan mengenai objek sasaran kayak misalnya hewan, benda yang ada di bawah laut, dan dasar lautan. Nah, saat kena objek sasaran, pantulan suara itu akan menghasilkan efek gema atau echo. Yaudah, deh, sinyal pantulan itu langsung ditangkap oleh penerima atau detektor. Selanjutnya, bisa langsung dianalisis di monitor untuk keperluaan data kayak arah, cepat rambat gelombang, dan waktu. Semua data yang udah didapat itu bisa dipakai untuk mengukur kedalaman laut.
Jadi, dari gelombang suara dipancarkan sampai gelombang suara itu kembali, kita bisa estimasikan jaraknya. Kalau kamu ingat cepat rambat bunyi, rumus yang sama dipakai di sini. Tapi, karena jarak gelombang suara ultrasonik di laut itu bolak-balik (gelombang suara datang dan pantul) makanya harus dibagi 2.
Supaya kamu makin paham dari penerapan rumus yang di atas, langsung aja kita ke contoh soalnya ya!
Kedalaman laut akan diukur dengan teknik pantulan gelombang suara atau sistem sonar. Gelombang pulsa elektronik yang dipantulkan dari kapal diterima kembali oleh penerima di kapal 4 detik kemudian. Cepat rambat bunyi di dalam air laut adalah 1400 m/s. Kedalaman laut tersebut adalah…
A. 5600 m
B. 3800m
C. 2800m
D. 2600m
E. 700m
Pembahasan:
Diketahui:
t = 4 sekon
v = 1400 m/s
Ditanya: s atau kedalaman lautan.
Jawab:
s = 1/2 (v x t)
s = 1/2 (1400 m/s x 4 s)
s = 2800 m
Jadi, jawabannya yang C.
Gimana nih, udah paham belum? atau kamu merasa soal-soalnya kurang banyak?. Eits, nggak usah khawatir, langsung aja deh ke ruangbelajar. Soal-soal terlengkap dan terupdate ada semua disitu. Yang lebih kerennya lagi ada pembahasan yang mudah banget dipahami. Pemahaman kamu tentang fisika ini akan lebih bagus deh, yuk tunggu apalagi!
Referensi:
What is Sonar. [daring], Tautan: https://oceanservice.noaa.gov/facts/sonar.html, diakses pada 22 Februari 2021.
Sonar. [daring], Tautan: https://www.britannica.com/technology/sonar, diakses pada 22 Februari 2021.
Siti Zubaidah, dkk (2017) Ilmu Pengetahuan Alam Kelas VIII Semester 2. Jakarta : Pusat Perbukuan, Departemen Pendidikan Nasional.
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<h1 class="content-title">
Sistem Sonar dan Menghitung Kedalaman Laut | Fisika Kelas 8 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/kak-efira-mt-saintek" class="">Kak Efira MT Saintek</a> </p>
<p class="content-info"><span>March 19, 2021 • </span> <span>5 minutes read</span></p>
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<p><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/sonar.jpg" alt="sonar" width="820" loading="lazy" style="width: 820px; margin-left: auto; margin-right: auto; display: block;"></p>
<blockquote>
<p style="text-align: center; font-size: 16px;"><em>Artikel ini membahas mengenai sistem sonar dan cara menghitung kedalaman laut.</em></p>
</blockquote>
<p style="text-align: center; padding-left: 40px;"><em>—</em></p>
<p style="text-align: center; padding-left: 40px;"><em><span id="more-5203"></span></em></p>
<p style="text-align: justify;">Kamu pernah kepikiran nggak, sih, seberapa dalam lautan itu? Bagian laut paling dalam yang pernah diukur manusia itu sekitar 10,9 km. Kalo kamu cemplungin Burj Khalifa, bangunan paling tinggi di dunia, kedalaman laut itu mencapai 13 gedung burj khalifah yang ditumpuk vertikal, loh! Lautan juga mencakup 2/3 dari permukaan planet kita. Wah, lautan ini luas dan dalam yah.</p>
<p style="text-align: justify;">Lautan juga menyimpan banyak misteri, misalnya makhluk hidup yang belum pernah ditemukan sebelumnya, sumberdaya alam dan mineral, atau bahkan benda buatan manusia yang jatuh kelautan, seperti kapal laut atau pesawat. </p>
<p style="text-align: justify;">Nah, untuk menyingkap semua misteri tadi, kita butuh sebuah gambaran tentang permukaan bawah air. Kita bisa membangun teknologi berdasarkan fenomena fisika. Semua itu memanfaatkan fenomena gelombang bunyi atau suara.</p>
<p style="text-align: center;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Seberapa%20dalam%20lautan.gif" alt="Seberapa dalam lautan" width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></p>
<p style="text-align: center; line-height: 1.15;">Tinggi satu gedung Burj Khalifa hanya sedalam 2,7 ft di bawah laut </p>
<p style="text-align: center; line-height: 1.15;">(sumber: Tech Insider via Youtube)<span style="font-weight: bold;"></span></p>
<p style="text-align: justify;"><span style="font-weight: bold;">Baca juga:</span> <a href="https://ruangguru.com/blog/perbedaan-getaran-dan-gelombang" style="color: #3c78d8;" rel="noopener"><strong><span>Memahami Perbedaan Getaran dan Gelombang</span></strong></a><span style="color: #3c78d8;">.</span></p>
<p style="text-align: justify;">Lalu, gelombang suara kayak gimana yang dipakai? jadi, jawabannya adalah gelombang suara ultrasonik. Kamu harus tau nih, ultrasonik itu frekuensinya lebih dari 20.000Hz. Nah, gelombang ini dapat merambat dan menjalar pada air laut. Dengan mempelajari pergerakan gelombang bunyi ini, kita bisa loh memprediksi keberadaan benda-benda di dasar laut. Nah, teknologi yang memakai metode seperti ini bernama sonar atau <em>sound navigation and ranging</em>.</p>
<p style="text-align: justify;">Terus, gimana sih cara kerja sistem sonar? Apa kita bisa mengukur kedalaman laut pakai sonar? Oke supaya jelas, baca artikel ini sampai habis ya!</p>
<p style="text-align: justify;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Side%20Scan%20Sonar.png" alt="Side Scan Sonar" width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></p>
<p style="text-align: center; line-height: 1.15;">Contoh dari sonar aktif yaitu Side Scan Sonar (SSS)</p>
<p style="text-align: center; line-height: 1.15;">(Sumber : commons.wikimedia.org)</p>
<p style="text-align: center; line-height: 1.15;"> </p>
<h2 style="font-size: 20px; font-weight: bold;"><span style="color: #2eb5c0;">Sonar dan Sejarah Perkembangannya</span></h2>
<p style="text-align: justify;">Sonar (<em>Sound Navigation and Ranging)</em> adalah sistem perangkat untuk mendeteksi dan menentukan jarak benda yang ada di bawah laut. Kenapa yah sonar menggunakan gelombang suara ultrasonik? Padahal, kan, ada gelombang suara dengan rentang frekuensi yang lain. Nah, itu karena <strong>gelombang suara yang lain ini tidak bisa merambat jauh di dalam air. Sedangkan gelombang suara ultrasonik ini memiliki kemampuan unik untuk merambat dalam jarak yang jauh</strong>.</p>
<p style="text-align: justify;">Terus, kenapa kita gak pake gelombang cahaya? Sayangnya, gelombang cahaya di dalam air ini tidak mampu merambat terlalu jauh karena sifat medium air laut yang mendifraksi berkas gelombang cahaya guys.</p>
<p style="text-align: justify;">Sonar pertama kali dipakai untuk mendeteksi gunung es di bawah laut. Terus, dipakai juga di bidang militer untuk cari tahu kapal selam musuh dan ranjau. Sampai sekarang, sonar masih sering dipakai terutama untuk menemukan benda hilang di laut, dan untuk mengukur kedalaman laut. Sonar udah eksis banget dehh di kalangan nelayan modern. Berkat sonar, nelayan jadi lebih gampang untuk menemukan letak kumpulan ikan, tahu kondisi ombak, dan juga arus air laut.</p>
<p style="text-align: justify;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/sistem%20sonar.jpg" alt="sistem sonar" width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></p>
<p style="text-align: justify;"> </p>
<h2 style="font-size: 20px; font-weight: bold;"><span style="color: #2eb5c0;">Jenis Sonar</span></h2>
<p style="text-align: justify;">Ada <strong>dua jenis sonar, yaitu sonar aktif dan sonar pasif</strong>. Kita mulai bahas dari sonar pasif dulu ya! </p>
<p style="text-align: justify;">Sonar pasif adalah sistem sonar yang dibuat pertama kali, loh! Sistem sonar pasif lebih sederhana dari sistem sonar aktif karena dia nggak mengirim sinyal atau gelombang suara. Jadi, cuma bisa mendeteksi gelombang suara yang datang ke arah penerima atau operator kapal dan hasilnya bisa dilihat di layar monitor. Makanya, sonar pasif cenderung nggak bisa mengukur jarak objek dan kedalaman laut. Tapi bisa untuk menentukan arah objek, dan terkadang dipakai untuk mendeteksi suara hewan laut, contohnya paus.</p>
<p style="text-align: justify;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/cara%20kerja%20sistem%20sonar%20pasif2.jpg" alt="cara kerja sistem sonar pasif" width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;">Karena sistem sonar pasif yang sangat terbatas dan adanya pengaruh kemajuan teknologi juga, maka dibuatlah sistem sonar aktif. Contoh dari sistem sonar aktif ada multibeam, side scan sonar (sss), split-beam, matess atau <em>mine detection sonar system</em>, dll.</p>
<p style="text-align: justify;">Gimana sih cara kerja sonar aktif? Jadi, awalnya kapal mengirim pemancar (transmitter) gelombang suara ke dalam air pakai alat bernama transduser sonar. <em>Fyi</em> ya guys, transduser sonar itu alat yang mengubah sinyal listrik jadi gelombang suara di dalam laut. </p>
<p style="text-align: justify;">Setelah itu, gelombang suara merambat di air dan nanti akan mengenai objek sasaran kayak misalnya hewan, benda yang ada di bawah laut, dan dasar lautan. Nah, saat kena objek sasaran, pantulan suara itu akan menghasilkan efek gema atau <em>echo</em>. Yaudah, deh, sinyal pantulan itu langsung ditangkap oleh penerima atau detektor. Selanjutnya, bisa langsung dianalisis di monitor untuk keperluaan data kayak arah, cepat rambat gelombang, dan waktu. Semua data yang udah didapat itu bisa dipakai untuk mengukur kedalaman laut.</p>
<p style="text-align: justify;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/cara%20kerja%20sistem%20sonar%20aktif1.jpg" alt="cara kerja sistem sonar aktif1" width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;">Jadi, dari gelombang suara dipancarkan sampai gelombang suara itu kembali, kita bisa estimasikan jaraknya. Kalau kamu ingat <a href="https://www.ruangguru.com/blog/konsep-gelombang-bunyi"><strong><span>cepat rambat bunyi</span></strong></a>, rumus yang sama dipakai di sini. Tapi, karena jarak gelombang suara ultrasonik di laut itu bolak-balik (gelombang suara datang dan pantul) makanya harus dibagi 2.</p>
<p style="text-align: justify;"><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/rumus%20menghitung%20kedalaman%20lautan1.jpg" alt="rumus menghitung kedalaman lautan" width="600" loading="lazy" style="width: 600px; margin-left: auto; margin-right: auto; display: block;"></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;">Supaya kamu makin paham dari penerapan rumus yang di atas, langsung aja kita ke contoh soalnya ya!</p>
<p style="text-align: justify;">Kedalaman laut akan diukur dengan teknik pantulan gelombang suara atau sistem sonar. Gelombang pulsa elektronik yang dipantulkan dari kapal diterima kembali oleh penerima di kapal 4 detik kemudian. Cepat rambat bunyi di dalam air laut adalah 1400 m/s. Kedalaman laut tersebut adalah…</p>
<p>A. 5600 m<br />B. 3800m<br />C. 2800m<br />D. 2600m<br />E. 700m</p>
<p style="text-align: justify;">Pembahasan:</p>
<p style="text-align: justify;">Diketahui: </p>
<p style="text-align: justify;">t = 4 sekon</p>
<p style="text-align: justify;">v = 1400 m/s</p>
<p style="text-align: justify;">Ditanya: s atau kedalaman lautan.</p>
<p style="text-align: justify;">Jawab:</p>
<p style="text-align: justify;">s = 1/2 (v x t)</p>
<p style="text-align: justify;">s = 1/2 (1400 m/s x 4 s)</p>
<p style="text-align: justify;">s = 2800 m</p>
<p>Jadi, jawabannya yang C.</p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;">Gimana nih, udah paham belum? atau kamu merasa soal-soalnya kurang banyak?. Eits, nggak usah khawatir, langsung aja deh ke <a href="https://www.ruangguru.com/ruangbelajar"><strong><span>ruangbelajar.</span></strong></a> Soal-soal terlengkap dan terupdate ada semua disitu. Yang lebih kerennya lagi ada pembahasan yang mudah banget dipahami. Pemahaman kamu tentang fisika ini akan lebih bagus deh, yuk tunggu apalagi!</p>
<p style="text-align: justify;"><a href="https://www.ruangguru.com/download-for-desktop" target="_blank" style="text-align: center;" class="rg-cta" rel="noopener"><img fetchpriority="high" decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/cta/f51e0d89-905d-477d-b7f8-546567f121d9.jpeg" width="800" height="195" alt="IDN CTA Blog ruangbelajar for desktop Ruangguru" /></a></p>
<p style="text-align: justify;"><strong>Referensi:</strong></p>
<p style="text-align: left;">What is Sonar. [daring], Tautan: https://oceanservice.noaa.gov/facts/sonar.html, diakses pada 22 Februari 2021.<strong> </strong></p>
<p style="text-align: left;">Sonar. [daring], Tautan: https://www.britannica.com/technology/sonar, diakses pada 22 Februari 2021.<strong> </strong></p>
<p style="text-align: left;">Siti Zubaidah, dkk (2017) Ilmu Pengetahuan Alam Kelas VIII Semester 2. Jakarta : Pusat Perbukuan, Departemen Pendidikan Nasional.</p>
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<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/youtube.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/youtube.png" loading=" lazy" alt="Logo Youtube Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.linkedin.com/company/ruangguru-com">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/linkedin.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/linkedin.png" loading=" lazy" alt="Logo LinkedIn Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.tiktok.com/@ruangguru">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/tiktok.png?height=60" type="image/png">
<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>