javascript - jQuery 代码在链接到 html 时不起作用-6ren

javascript - jQuery 代码在链接到 html 时不起作用

转载作者：行者123 更新时间：2023-11-30 11:08:23

我一直在使用 jquery 来实现 Codepen 中的一些基本平滑滚动功能，除了 codepen 中的 navbar-shrink 转换之外，一切似乎都有效。所以我决定在 Visual Studio Code Editor 中尝试一下，结果出了问题。似乎我的 jquery 代码根本无法正常工作，即使我检查了 html 中的文件链接，我认为所有内容都已链接在一起，我没有更改任何代码。为什么我的 jquery 代码根本不起作用。我从 bootstrap 4 起始模板开始，我可能做错了什么，任何人都可以看看我的代码并给我一些反馈，不胜感激。

$(document).ready(function () {
    var scrollLink = $('.scroll');
    scrollLink.click(function (e) {
        e.preventDefault();
        $('html, body').animate({
            scrollTop: $(this.hash).offset().top
        }, 900)
    })

    $(window).scroll(function () {
        var scrollbarLocation = $(this).scrollTop();

        if ($('.navbar').offset().top > 100) {
            $('.navbar').addClass('navbar-shrink');
        } else {
            $('.navbar').removeClass('navbar-shrink');
        }
        scrollLink.each(function () {
            var sectionOffset = $(this.hash).offset().top;
            if (sectionOffset <= scrollbarLocation) {
                $(this).parent().addClass('active');
                $(this).parent().siblings().removeClass('active');
            }
        })
    })
})

section {
	width: 100%;
	height: 900px;
}

#home {
	background-color: lightblue;
}

#about {
	background-color: lightsalmon;
}

#contact {
	background-color: lightgray;
}

.active {
	background-color: blue !important;
	color: #FFF !important;
}

* {
	transition: all .4s ease-in 0s;
}

.navbar-shrink {
	
	height: 45px;
/* 	background-color: transparent !important; */
}

<!doctype html>
<html lang="en">

<head>
    <!-- Required meta tags -->
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">

    <!-- Bootstrap CSS -->
    <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css"
        integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
    <link rel="stylesheet" href="style.css">
    <title>Hello, world!</title>
   
</head>

<body>
    <nav class="navbar navbar-expand-lg navbar-light bg-light fixed-top transition">
        <a class="navbar-brand" href="#">Navbar</a>
        <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarNav"
            aria-controls="navbarNav" aria-expanded="false" aria-label="Toggle navigation">
            <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="navbarNav">
            <ul class="navbar-nav ml-auto">
                <li class="nav-item active">
                    <a class="nav-link scroll" href="#home">Home</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link scroll" href="#about">About</a>
                </li>
                <li class="nav-item">
                    <a class="nav-link scroll" href="#contact">Contact</a>
                </li>
            </ul>
        </div>
    </nav>
    
    <section id='home'>Home</section>
    <section id='about'>About</section>
    <section id='contact'>Contact</section>
   
    <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
        integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN"
        crossorigin="anonymous"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js"
        integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q"
        crossorigin="anonymous"></script>
    <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js"
        integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl"
        crossorigin="anonymous"></script>
      <script src='main.js'>

    </script>
</body>

</html>