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<h1 class="content-title">
Persamaan Garis Lurus dan Masalah Polusi Udara | Matematika Kelas 11 </h1>
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<p class="content-author"><a href="https://www.ruangguru.com/blog/author/rangga-putra-pertama" class="">Rangga Putra Pertama</a> </p>
<p class="content-info"><span>July 31, 2018 • </span> <span>4 minutes read</span></p>
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<p><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/Header%20blog%20RG/Matematika_11.jpg" alt="Matematika_11" width="821" style="width: 821px;"></p>
<blockquote>
<div style="text-align: justify;"><em>Persamaan garis lurus dijelaskan dengan mudah dalam artikel ini melalui contoh di kehidupan sehari-hari dan lingkungan sekitar serta isu yang sedang hangat.</em></div>
</blockquote>
<p style="text-align: center;"><em><span>—</span></em></p>
<p><span id="more-9409"></span></p>
<p style="text-align: justify;"><span style="background-color: transparent;">Sudah tahu belum Squad kalau Jakarta menjadi kota yang punya polusi udara tertinggi di dunia? Yap, laporan ini berdasarkan data pada 24 Juli 2018 dari AirVisual, sebuah aplikasi pemantau kualitas udara. Biasanya sih kualitas udara dan tingkat polusi digambarkan melalui grafik. Melalui grafik ini nantinya kenaikan/penurunan polusi bisa dianalisis. Nah, salah satu hal yang perlu diketahui dalam menganalisis grafik adalah </span><strong style="background-color: transparent;">persamaan garis lurus dari sebuah grafik</strong><span style="background-color: transparent;">.</span></p>
<p style="text-align: justify;"><strong>Persamaan garis lurus adalah persamaan matematika yang dihasilkan dari sebuah garis lurus pada grafik</strong>. Jadi ada dua hal yang akan kita bahas, yaitu bagaimana membuat persamaan matematika dari sebuah garis lurus, dan bagaimana membuat garis lurus dari sebuah persamaan matematika. Gimana tuh penjelasannya? Kita lihat satu per satu <em>yuk</em>!</p>
<p style="text-align: justify;"><span style="background-color: transparent;">Pada umumnya, garis lurus pada grafik dapat dituliskan dalam persamaan matematika. Lihat pada gambar di bawah ini ya.</span></p>
<div><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/contoh%20persamaan%20garis%20lurus%202%20titik.png" alt="contoh persamaan garis lurus 2 titik" width="600" style="width: 600px; display: block; margin: 0px auto;"></div>
<p style="text-align: justify;"><em style="background-color: transparent;">Terus </em><strong style="background-color: transparent;">bagaimana cara menentukan persamaan garis lurus dari sebuah garis pada grafik</strong><span style="background-color: transparent;">? Ada beberapa teknik tergantung kondisinya hehe. </span><em style="background-color: transparent;">Cuma</em><span style="background-color: transparent;"> ada tiga kondisi </span><em style="background-color: transparent;">sih</em><span style="background-color: transparent;">. Coba lihat deh gambar di bawah.</span></p>
<div><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/3%20kondisi%20persamaan%20garis%20lurus.png" alt="3 kondisi persamaan garis lurus" width="600" style="width: 600px; display: block; margin: 0px auto;"></div>
<p style="text-align: justify;"><span style="background-color: transparent;">Salah satu grafik yang menggambarkan polusi udara </span><em style="background-color: transparent;">tuh</em><span style="background-color: transparent;"> adalah grafik hubungan antara </span><em style="background-color: transparent;">Pollution Standard Index </em><span style="background-color: transparent;">(PSI) di sumbu y dan berat polutan per meter kubik udara di sumbu x. Dari grafik itu bisa dianalisis polutan mana </span><em style="background-color: transparent;">sih</em><span style="background-color: transparent;"> yang paling berbahaya dan bisa menaikkan angka PSI paling tinggi. Tentunya analisis ini memakai persamaan garis lurus dari grafik. Misalnya pada suatu pemonitoran polutan udara, ditemukan grafik seperti di bawah ini.</span></p>
<div><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/persamaan%20garis%20x%201%20dan%204.png" alt="persamaan garis x 1 dan 4" width="600" style="width: 600px; display: block; margin: 0px auto;"></div>
<p style="text-align: justify;"><span style="background-color: transparent;">Gimana coba cara membuat persamaan garisnya? Perhatikan saja Squad dari gambar, di situ kan </span><strong style="background-color: transparent;">ada dua titik yang diketahui</strong><span style="background-color: transparent;">. Langsung saja deh pakai rumus di kondisi pertama buat menyelesaikannya. Kamu bisa lihat pada gambar di bawah ini ya.</span><span style="background-color: transparent;"> </span></p>
<p style="text-align: justify;"><strong><span style="background-color: transparent;">Baca juga: <a href="/matematika-kelas-8-cara-menentukan-persamaan-garis-lurus" rel="noopener">Cara Menentukan Persamaan Garis Lurus</a></span></strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">Jadi diperoleh deh persamaan garis pada grafik polusi udara tersebut, yaitu y = 2x + 2. Ternyata gradien dari grafik itu adalah 2. Semakin besar gradiennya, justru akan semakin berbahaya </span><em style="background-color: transparent;">lho </em><span style="background-color: transparent;">karena semakin mampu menaikkan angka PSI. Jadi membandingkan dua polutan bisa juga tuh dari gradien grafiknya. Kalau sudah paham, langsung lanjut ke materi selanjutnya </span><em style="background-color: transparent;">yuk</em><span style="background-color: transparent;">.</span></p>
<div><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/membuat%20garis%20dari%20persamaan%20garis%20lurus.png" alt="membuat garis dari persamaan garis lurus" width="600" style="width: 600px; display: block; margin: 0px auto;"></div>
<p style="text-align: justify;"><span style="background-color: transparent;">Cukup mudah kok Squad untuk membuat garis dari sebuah persamaan garis lurus. Sama seperti tadi, ada tiga kondisi yang harus diperhatikan hehe. Langsung aja deh periksa gambar di bawah.</span></p>
<div><img decoding="async" src="https://lh4.googleusercontent.com/JNhNHde92z2uQeWc4MOuCD7vIN8p7ZNzr1N4pj-WxZkVpPoWMV5vZOSEa5XVztsUmAoFvzvnGdlOw_h73vJtlGK-lzkRb56qfQu5RhrNPRDGSWnHdUsbeIpttSAZb9TUCIBVxVD4pj4584qcOg" alt="" style="width: 600px; margin: 0px auto; display: block;" width="600"></div>
<p style="text-align: justify;"><span style="background-color: transparent;">Proses pemonitoran polusi udara butuh peralatan canggih, waktu yang lama, dan data yang dikumpulkan juga harus banyak, Squad. Semakin canggih peralatan, semakin bervariasi pula jenis polutan yang bisa diukur. </span><em style="background-color: transparent;">Nah</em><span style="background-color: transparent;"> sekarang kalau misalanya data-data yang didapat dalam proses pemonitoran polutan, ternyata menghasilkan persamaan garis lurus seperti di bawah ini.</span></p>
<p style="text-align: center;"><span style="background-color: #ffffff;"><strong><span style="font-size: 18px;">y = 4 – 2x</span></strong></span></p>
<p style="text-align: justify;">Gimana tuh kalau digambarkan di grafik?</p>
<p style="text-align: justify;">Ikuti petunjuk seperti gambar di atas saja, Squad. Persamaan tersebut termasuk kondisi ke (3) kan? Tinggal cari dulu <em>deh</em> berapa x saat y = 0 dan y saat x = 0 hehe.</p>
<p style="text-align: justify;"><strong>y = 0 → 0 = 4 – 2x</strong></p>
<p style="text-align: justify;"><strong>4 = 2x </strong></p>
<p style="text-align: justify;"><strong>maka x = 2</strong></p>
<p style="text-align: justify;"><strong>x = 0 → y = 4</strong></p>
<p style="text-align: justify;"><strong>maka y = 4</strong></p>
<p style="text-align: justify;">Setelah didapat, kita hubungkan kedua titik tersebut dengan garis. Jadi deh seperti ini,</p>
<div><img decoding="async" src="https://cdn-web.ruangguru.com/landing-pages/assets/hs/grafik%20fungsi%20x%202%20dan%204.png" alt="grafik fungsi x 2 dan 4" width="600" style="width: 600px; display: block; margin: 0px auto;"></div>
<p style="text-align: justify;"><span style="background-color: transparent;">Gimana? Cukup mudah kan Squad? Kalau kamu memahami persamaan garis lurus, melihat grafik-grafik, terutama grafik polusi udara, dijamin nggak bakal bingung lagi deh. Kamu juga jadi paham kalau polusi di lingkungan kita sudah dalam keadaan memprihatinkan. Nggak mau kan Squad menghirup udara yang tidak sehat terus menerus? Makanya mulai sekarang kita jaga lingkungan kita! Budayakan memakai kendaraan umum ya hehe.</span></p>
<p style="text-align: justify;"><span style="background-color: transparent;">Masih banyak </span><em style="background-color: transparent;">nih</em><span style="background-color: transparent;"> Squad yang bisa kamu pelajari tentang persamaan garis lurus. Pastinya manfaatnya juga nggak hanya dalam mempelajari soal lingkungan saja, tapi </span><em style="background-color: transparent;">luebih </em><span style="background-color: transparent;">besar lagi. </span><em style="background-color: transparent;">Nah</em><span style="background-color: transparent;">, kalau kamu ingin belajar lebih jauh dengan cara yang mudah dan mengasyikkan, daftar aja di </span><a href="https://bit.ly/rg_app" rel="noopener" target="_blank"><strong style="background-color: transparent;">ruangbelajar</strong></a><span style="background-color: transparent;">. Di sana banyak banget video animasi dan pembahasan soal </span><em style="background-color: transparent;">lho</em><span style="background-color: transparent;">. Sikat, Squad!</span></p>
<p style="text-align: justify;"><span style="background-color: transparent;"><a href="https://link.ruangguru.com/blPk/eaff0eb9" 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/0ec4a2df-db2e-4ae1-8473-692756dcb684.jpeg" width="822" height="200" alt="IDN CTA Blog ruangbelajar Ruangguru" /></a></span></p>
<p style="text-align: justify;"><strong><span style="background-color: transparent;">Sumber Referensi </span></strong></p>
<p style="text-align: justify;"><span style="background-color: transparent;">Sukino. (2020) The Great Matematika untuk Siswa SMP-Mts Kelas VIII. Bandung:Srikandi Empat Widya Utama</span></p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"> </p>
<p style="text-align: justify;"><em><span style="background-color: transparent;">Artikel diperbarui 25 Januari 2021</span></em></p>
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<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>
<div class="col-lg-9">
<div class="row">
<div class="col-6 col-md-3">
<nav class="footer-menu">
<p class="title">Produk Ruangguru</p>
<ul type="none">
<li><a href="https://roboguru.ruangguru.com" target="_blank">Roboguru</a></li>
<li><a href="https://www.ruangguru.com/roboguruplus">Roboguru Plus</a></li>
<li><a href="https://www.ruangguru.com/dafa-lulu">Dafa dan Lulu</a></li>
<li><a href="https://www.ruangguru.com/for-kids/kursus">Kursus for Kids</a></li>
<li><a href="https://www.ruangguru.com/for-kids">Ruangguru for Kids</a></li>
<li><a href="https://www.ruangguru.com/bisnis">Ruangguru for Business</a></li>
<li><a href="https://www.ruangguru.com/ruanguji">Ruanguji</a></li>
<li><a href="https://www.ruangguru.com/blog">Ruangbaca</a></li>
<li><a href="https://www.ruangguru.com/ruangkelas">Ruangkelas</a></li>
<li><a href="https://www.ruangguru.com/ruangbelajar">Ruangbelajar</a></li>
<li><a href="https://pengajar.ruangguru.com/">Ruangpengajar</a></li>
<li><a href="https://www.ruangguru.com/privat">Ruangguru Privat</a></li>
<li><a href="https://www.ruangpeduli.org/" target="_blank">Ruangpeduli</a></li>
</ul>
</nav>
</div>
<div class="col-6 col-md-3">
<nav class="footer-menu">
<p class="title">Bantuan & Panduan</p>
<ul type="none">
<li><a href="https://www.ruangguru.com/company-credentials">Company Credentials</a></li>
<li><a href="https://www.ruangguru.com/beasiswa">Beasiswa Ruangguru</a></li>
<li><a href="https://www.ruangguru.com/cicilan">Cicilan Ruangguru</a></li>
<li><a href="https://www.ruangguru.com/promo">Promo Ruangguru</a></li>
<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>
<li><a href="https://www.ruangguru.com/terms-conditions">Syarat & Ketentuan</a></li>
<li><a href="https://www.ruangguru.com/privacy-policy">Kebijakan Privasi</a></li>
<li><a href="https://www.ruangguru.com/about-us">Tentang Kami</a></li>
<li><a href="https://www.ruangguru.com/contact-us">Kontak Kami</a></li>
<li><a href="https://www.ruangguru.com/press">Press Kit</a></li>
<li><a href="https://www.ruangguru.com/bantuan">Bantuan</a></li>
<li><a href="https://career.ruangguru.com/">Karier</a></li>
</ul>
</nav>
</div>
<div class="col-6 col-md-3">
<nav class="footer-menu">
<p class="title">Produk Lainnya</p>
<ul type="none">
<li><a href="https://www.brainacademy.id/" target="_blank">Brain Academy</a></li>
<li><a href="https://www.english-academy.id/" target="_blank">English Academy</a></li>
<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>
</nav>
</div>
<div class="col-6 col-md-3">
<nav class="footer-menu">
<p class="title"> Coba GRATIS Aplikasi Ruangguru</p>
<div class="download-list">
<ul>
<li>
<a target="_blank" rel="nofollow" href="https://apps.apple.com/id/app/ruangguru-solusi-belajar/id1099742206?l=id">
<img src="https://cdn-web-2.ruangguru.com/static/appstore.png" loading="lazy" alt="Button App Store Footer " />
</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>
</ul>
</div>
</nav>
</div>
</div>
</div>
</div>
<div class="d-lg-none text-center">
<nav class="footer-menu social">
<p class="title">Ikuti Kami</p>
<a target="_blank" href="https://www.instagram.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/instagram.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/instagram.png" loading="lazy" alt="Logo Instagram Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.facebook.com/ruanggurucom/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/facebook.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/facebook.png" loading="lazy" alt="Logo Facebook Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://twitter.com/ruangguru/">
<picture>
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60&convert=webp" type="image/webp">
<source srcset="https://cdn-web-2.ruangguru.com/static/twitter.png?height=60" type="image/png">
<img src="https://cdn-web-2.ruangguru.com/static/twitter.png" loading=" lazy" alt="Logo Twitter Footer" width="32px" height="32px" />
</picture>
</a>
<a target="_blank" href="https://www.youtube.com/ruangguru">
<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>