javascript - 如何将范围 slider 幻灯片上的文本放入本地存储？

Question

我正在使用范围 slider 。滑动时，图像和短语会发生变化。

滑动分为三个阶段。滑动时，短语和图像会发生变化。每次更改时，该短语和图像都应保存到本地存储。这就是问题所在。

我的html代码是:

<div class="image mt-3 mb-3" id="sliderImages">
          <img src="../static/images/1.jpg" width="400" height="180">
          <img src="../static/images/2.jpg" width="400" height="180">
          <img src="../static/images/3.jpg" width="400" height="180">
        </div><br>
        <div class="rangeslider">
          <input type="range" min="1" max="3" value="1" class="myslider" id="sliderRange">
          <div class="container">
          <div id="sliderOutput">
            <div class="col-4">

              <h6 class="display-6 mt-3"><b><center>Starting From Scratch</center></b></h6>
              <p class="demo"><center>I'm designing the room </p>
            </div>
            <div class="col-4">
              <h6 class="display-6 mt-3"><b>Somewhere in Between</b></h6>
              <p class="demo">I'm designing around a few pieces I already own</p>
            </div>
            <div class="col-4">
              <h6 class="display-6 mt-3"><b>Mostly Furnished</b></h6>
              <p class="demo">I want to put the finishing touches on my room</p>
            </div>
          </div>
        </p>

我的 CSS 代码是:

<style>
        .rangeslider {
          width: 50%;
          margin: 0 auto;
          position: absolute;
        }
        .myslider {
          -webkit-appearance: none;
          background: white;
          width: 100%;
          height: 20px;
          opacity: 0.8;
          margin-top: 180px;
        }
        .myslider::-webkit-slider-thumb {
          -webkit-appearance: none;
          cursor: pointer;
          background: #000080;
          width: 33%;
          height: 20px;
        }
        .col-4 {
          text-align: center;
        }
        .myslider:hover {
          opacity: 1;
        }
        .image {
          position: relative;
          width: 400px;
          margin: 0 auto;
        }
        .image>img {
          position: absolute;
          display: none;
        }
        .image>img.visible,
        .image>img:first-child {
          display: block;
        }
        #sliderOutput>div {
          display: none;
        }
        #sliderOutput>div.visible,
        #sliderOutput>div:first-child {
          display: block;
        }
        #p1{
          height: 10px;
        }
      </style>

我的 JS 代码是:

<script>
        window.addEventListener('load', function() {
        var rangeslider = document.getElementById("sliderRange");
        var output = document.getElementById("sliderOutput");
        var images = document.getElementById("sliderImages");
        rangeslider.addEventListener('input', function() {
          for (var i = 0; i < output.children.length; i++) {
            output.children[i].style.display = 'none';
            images.children[i].style.display = 'none';
          }
          i = Number(this.value) - 1;
          output.children[i].style.display = 'block';
          images.children[i].style.display = 'block';
        });
      });
    </script>

滑动时，图像和短语会发生变化。我对更改短语和图像路径的要求应该存储在本地存储中。

你们能帮我吗？

Answer 1

将上次存储的图片路径和 slider 编号放入localStorage并使用

<script>
    window.addEventListener('load', function() {

    var imagePath = "../static/images/";
    var localStorageSliderNumber;
    var localStorageImagePath; 
    if (window.localStorage.getItem('sliderValue') != null) {
        localStorageSliderNumber = 
            window.localStorage.getItem('sliderValue');
    } else {
        window.localStorage.setItem('sliderValue', '1');
        localStorageSliderNumber = 1;
    }
    if (window.localStorage.getItem('imagePath') != null) {
        imagePath = imagePath + window.localStorage.getItem('imagePath') + ".jpg";
    }

    var rangeslider = document.getElementById("sliderRange");
    var output = document.getElementById("sliderOutput");
    var images = document.getElementById("sliderImages");
    rangeslider.addEventListener('input', function() {
      for (var i = 0; i < output.children.length; i++) {
        output.children[i].style.display = 'none';
        images.children[i].style.display = 'none';
      }
      i = Number(this.value) - 1;
      output.children[i].style.display = 'block';
      images.children[i].style.display = 'block';

      window.localStorage.setItem('sliderValue', rangeslider.getAttribute('value'));
      window.localStorage.setItem('imagePath', (i+1));
    });
  });
</script>