在这种数组情况下如何删除逗号分隔符？

Question

所以，首先我有：

var tempArray = [];
tempArray.push(get);

在这种情况下，get 变量会抓取克隆 div 的 html。

我最后尝试过的：

tempArray.push(get);

var myJSONString = JSON.stringify(tempArray);

var parseString = $.parseJSON(myJSONString);

var finalString = myJSONString.replace(/\r?\\n/g, '').replace(/\\/g, '').replace(/^\[(.+)\]$/,'$1').replace (/(^")|("$)/g, '');

var joinString = tempArray.join(",");

然后：

// Save
localStorage.setItem('sessions', finalString);

我总是得到什么：

tempArray[div "," div]

我已将函数外的数组声明为：

var tempArray = [];

我在这里将内容推送到数组：

  // Decide to add or remove
  if(box.hasClass("selected")){
    console.log("Add to array")
    tempArray.push(get);

    // Add to favorites tab
    favoriteTab.append(boxContent);

  }

完整的 JS

console.clear();
//localStorage.setItem('sessions', "");

var tempArray = [];

// Clones
$('div.tab-pane').on('click', '.favorite', function(e) {
  e.preventDefault();

  // Elements we play with... Having significative variable names.
  var heartLink = $(this);
  var box = heartLink.parent('.box');
  var container = box.parent('.box-container');
  var favoriteTab = $("#fav .spaces");

  // I don't know what is the use for those 3 lines below.
  var idFind = box.attr("id");
  var idComplete = ('#' + idFind);
  console.log(idComplete);

  //TOGGLE FONT AWESOME ON CLICK
  heartLink.find('i').toggleClass('fa-heart fa-heart-o'); // .selected or not, you need those 2 classes to toggle.
  box.toggleClass("selected not-selected"); // Toggle selected and not-selected classes

  // Clone div
  var boxContent = container.clone(true, true);

  // Change the id
  var thisID = boxContent.attr("id")+"_cloned";
  boxContent.attr("id", thisID);

  // Get the html to be saved in localstorage
  var get = boxContent.wrap('<p>').parent().html();
  get = get.replace(/\r?\n/g, "").replace(/>\s*</g, "><"); // remove line feeds and spaces
  console.log(get);
  boxContent.unwrap();

  // Decide to add or remove
  if(box.hasClass("selected")){
    console.log("Add to array")
    tempArray.push(get);

    // Add to favorites tab
    favoriteTab.append(boxContent);

  }else{
    console.log("Remove from array");
    var index = tempArray.indexOf(get);
    tempArray.splice(index);

    // Remove from favorite tab
    favoriteTab.find("#"+thisID).remove();
  }

  // Save
  localStorage.setItem('sessions', tempArray);

});

// Append item if localstorage is detected
if (localStorage["sessions"]) {
  $("#fav .spaces").append(localStorage["sessions"]);
  console.log( localStorage.getItem('sessions') );
}

完整的html

<section id="speakers-programme">
  <div class="container">
    <div class="tabs_main">

      <div class="col-md-5"><a data-target="#mon" class="btn active" data-toggle="tab">Monday</a></div>
      <div class="col-md-5"><a data-target="#tue" class="btn active" data-toggle="tab">Tuesday</a></div>
      <div class="col-md-2"><a data-target="#fav" class="btn active" data-toggle="tab"><i class="fa fa-heart" aria-hidden="true"></i></a></div>

    </div>

    <div class="tab-content">
      <div class="tab-pane active" id="mon">
        <br>
        <div class="spaces">
          <div class="box-container">
            <div class="box not-selected" id="box1">
              <span>1</span>
              <a href="#" class="favorite"><i class="fa fa-heart-o" aria-hidden="true"></i></a>
            </div>
          </div>
          <div class="box-container">
            <div class="box not-selected" id="box2">
              <span>2</span>
              <a href="#" class="favorite"><i class="fa fa-heart-o" aria-hidden="true"></i></a>
            </div>
          </div>
        </div>
      </div>

      <div class="tab-pane active" id="tue">
        <br>
        <div class="spaces">
        </div>
      </div>

      <div class="tab-pane active" id="fav">
        <br>
        <div class="spaces">
        </div>
      </div>

    </div>
  </div>
</section>

小提琴：https://codepen.io/Bes7weB/pen/NvQQMN?editors=0011

因此，在此示例中，如果您单击“星期一”选项卡并单击两个心形，父 div 将被克隆到“收藏夹”选项卡，然后如果您刷新页面，您将看到两个 div 都带有中间的逗号。

感谢任何帮助，非常感谢！

Answer 1

你需要更新数组，看看下面的例子

let arr = [1, 2];
arr.join(' ');

console.log(arr);

arr = arr.join(' ');

console.log(arr);