smooth-scroll/index.html at main · raylissonx404/smooth-scroll · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no">
    <title>Smooth scroll - By raylissonx404</title>
    <link rel="icon" href="https://files.catbox.moe/xut16i.ico" type="image/x-icon"/>
    <link rel="stylesheet" href="css/style.css" type="text/css"/>
</head>
<body>
    <main>
        <section id="section1">
            <h2>This is Section 1</h2>
            <div class="botoesArea">
                <button class="btn2">Go to Section 2</button>
                <button class="btn3">Go to Section 3</button>
            </div>
        </section>

        <section id="section2">
            <h2>This is Section 2</h2>
            <div class="botoesArea">
                <button class="btn1">Go to Section 1</button>
                <button class="btn3">Go to Section 3</button>
            </div>
        </section>

        <section id="section3">
            <h2>This is Section 3</h2>
            <div class="botoesArea">
                <button class="btn1">Go to Section 1</button>
                <button class="btn2">Go to Section 2</button>
            </div>
        </section>
    </main>

    <script>
        [

            { trigger: ".btn1", target: "section1", offset: 0, speed: 1000 },
            { trigger: ".btn2", target: "section2", offset: 0, speed: 1000 },
            { trigger: ".btn3", target: "section3", offset: 0, speed: 1000 }


        ].forEach(({ trigger, target, offset, speed }) => {
            document.querySelectorAll(trigger).forEach(button => {
                button.addEventListener("click", () => {
                    const start = window.scrollY,
                        end = document.getElementById(target).offsetTop - offset,
                        t0 = performance.now();
                    requestAnimationFrame(function step(t) {
                        const p = Math.min((t - t0) / speed, 1),
                            e = p < .5 ? 2 * p * p : 1 - Math.pow(-2 * p + 2, 2) / 2;
                        window.scrollTo(0, start + (end - start) * e);
                        if (p < 1) requestAnimationFrame(step);
                    });
                });
            });
        });
    </script>
</body>
</html>