javascript - 在 Laravel 10 上不可能使用scrollIntoView和scrollTo

Question

我在使用 Laravel 10 时遇到了问题。我需要通过按按钮滚动到下一个元素。我已经尝试过 myelement.scrollIntoView() 和 window.scrollTo() 函数，但没有成功，出了什么问题？

我的js:

    import {polyfill, scrollIntoView} from "seamless-scroll-polyfill";
    polyfill();

var Controls = {
    questions: document.getElementsByClassName('question'),
    center_questions: document.getElementsByClassName('center-question'),
    nextbuttons: document.getElementsByClassName('next'),
    prevbuttons: document.getElementsByClassName('prev'),
    header: document.getElementById('header'),

    init: function (){
        for (let button of this.nextbuttons) {
            button.addEventListener("click", e => {
                this.nextslide(e);
            } );
        }
        for (let button of this.prevbuttons) {
            button.addEventListener("click", e => {
                this.prevslide(e);
            } );
        }
    },
    nextslide: function (e) {
        let id = e.target.closest(".question").firstElementChild.id;
        var question = document.getElementById(parseInt(id) + 1);
        window.scrollTo( 0, window.innerHeight );
    },
    prevslide: function (e) {
        let id = e.target.closest(".question").firstElementChild.id;
        document.getElementById(parseInt(id) - 1).scrollIntoView({ behavior: "smooth", block: "center"});
    },
}
window.onload = Controls.init();

Answer 1

我无法确切理解为什么您的代码片段不起作用，因为您没有有效的示例，但请使用我创建的尽可能接近您的代码的示例作为引用以使其工作:)

var Controls = {
  questions: document.getElementsByClassName('question'),
  nextbuttons: document.getElementsByClassName('next'),
  prevbuttons: document.getElementsByClassName('prev'),
  header: document.getElementById('header'),

  init: function() {
    for (let button of this.nextbuttons) {
      button.addEventListener("click", e => {
        this.nextslide(e);
      });
    }
    for (let button of this.prevbuttons) {
      button.addEventListener("click", e => {
        this.prevslide(e);
      });
    }
  },
  nextslide: function(e) {
    let id = e.target.closest(".question").firstElementChild.id;
    var question = document.getElementById(parseInt(id) + 1);
    question.scrollIntoView({ behavior: "smooth", block: "center"});
  },
  prevslide: function(e) {
    let id = e.target.closest(".question").firstElementChild.id;
    document.getElementById(parseInt(id) - 1).scrollIntoView({ behavior: "smooth", block: "center"});
  },
};

Controls.init();

#container {
  height: 200px;
  overflow: scroll;
}

#header {
  background-color: #f2f2f2;
  padding: 10px;
}

.question {
  padding: 20px;
  border: 1px solid #ccc;
  margin-bottom: 20px;
}

h2 {
  margin: 0;
  margin-bottom: 10px;
}

button {
  padding: 10px 20px;
  background-color: #007bff;
  color: #fff;
  border: none;
  cursor: pointer;
  margin-right: 10px;
}

button:hover {
  background-color: #0056b3;
}

button:disabled {
  background-color: #ccc;
  cursor: not-allowed;
}

<div id="container">
  <div id="header">Header</div>

  <div class="question">
    <h2 id="1">Question 1</h2>
    <button class="prev">Previous</button>
    <button class="next">Next</button>
  </div>

  <div class="question">
    <h2 id="2">Question 2</h2>
    <button class="prev">Previous</button>
    <button class="next">Next</button>
  </div>

  <div class="question">
    <h2 id="3">Question 3</h2>
    <button class="prev">Previous</button>
    <button class="next">Next</button>
  </div>
</div>