将ID分配给Sticky Notes

Question

如何将id作为0,1,2等提供给便签并将其ID返回到click事件.Below是粘滞便笺的小提琴代码，我们可以在其中添加多个便笺我想给它们分配一个id为0,1,2等，并在点击特定粘滞便笺

时获取其ID

(function() {
    
      var markup =
        '<div class="box note background-gray">' +
        '<div class="box-header">' +
        '<a href="#" class="left add hidden">&plus;</a>' +
        '<a href="#" class="right remove hidden">&times;</a>' +
        '</div><textarea class="note-text"></textarea></div>';
    
      var spawn = function() {
        $("body").append(makeNote($(markup)));
      };
    
      var remove = function() {
        $(this).parent().parent().remove();
      };
    
      var resizeTextArea = function() {
        var self = $(this);
        var spaceToGrab = 60;
        self.find('.note-text').height(self.height() - 45);
      };
    
      var hideButtons = function(element) {
        $(element).find("a").hide();
      };
    
      var showButtons = function(element) {
        $(element).find("a").show();
      };
    
      var save = function(id, value, position) {
        console.log(id); // position
        console.log(value);
        console.log(position);
      };
    
      var makeNote = function(element) {
        var $note = $(element);
        $note.resizable({
          handles: "se"
        });
        $note.draggable({
          handle: ".box-header"
        });
    
        $text = $note.find('textarea');
        $text.focusout(function(e) {
          save($(this).oid, $(this).val(), $(this).parent().position());
        });
        $note.click(function() {
          $(this).find('textarea').focus();
        });
    
        $note.mouseover(function() {
          showButtons(this);
        });
        $note.mouseout(function() {
          hideButtons(this);
        });
    
        $note.find(".add").click(spawn);
        $note.find(".remove").click(remove);
        $note.resize(resizeTextArea);
        hideButtons($note);
        return $note;
      };
    
      $(".note").each(function(i, e) {
        makeNote(e);
      });
    
      spawn();
    })();

.box {
      min-width: 100px;
      min-height: 100px;
      margin: 20px;
      display: block;
      width: 200px;
    }
    
    .note {
      /* box-shadow: h-shadow v-shadow blur spread color inset; */
      box-shadow: 5px 5px 8px #888;
      background-color: lime;
    }

.box-header {
      min-height: 30px;
      background-color: #e0e0e0;
      text-align: right;
      line-height: 30px;
    }
    
    .box-header a {
      display: block;
      margin: 4px;
      width: 20px;
      height: 20px;
      line-height: 20px;
      font-size: 24px;
      text-align: center;
      font-weight: bolder;
      font-family: "Helvetica Neue LT", "Helvetica", "Arial", "sans-serif";
      text-decoration: none;
      color: #666;
      border-radius: 5px;
    }
    
    .box-header a:link,
    .box-header a:visited {
      border: 1px solid #e0e0e0;
    }
    
    .box-header a:hover,
    .box-header a:active {
      border: 1px solid #aaa;
      background-color: #ccc;
    }
    
    .left {
      float: left;
    }
    
    .right {
      float: right;
    }
    
    .hidden {
      display: none;
    }
    
    .note-text {
      margin: 0;
      background: none;
      border: none;
      font-family: "Helvetica", "Arial", "sans-serif";
      font-size: 24px;
      width: 100%;
      font-style: italic;
      resize: none;
      overflow: auto;
      outline: none;
      padding: 5px;
    }
    
    .background-gray {
      background: #ffffff;
      /* Old browsers */
      background: -moz-linear-gradient(top, #ffffff 0%, #e0e0e0 100%);
      /* FF3.6+ */
      background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #ffffff), color-stop(100%, #e0e0e0));
      /* Chrome,Safari4+ */
      background: -webkit-linear-gradient(top, #ffffff 0%, #e0e0e0 100%);
      /* Chrome10+,Safari5.1+ */
      background: -o-linear-gradient(top, #ffffff 0%, #e0e0e0 100%);
      /* Opera 11.10+ */
      background: -ms-linear-gradient(top, #ffffff 0%, #e0e0e0 100%);
      /* IE10+ */
      background: linear-gradient(to bottom, #ffffff 0%, #e0e0e0 100%);
      /* W3C */
      filter: progid: DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#e0e0e0', GradientType=0);
      /* IE6-9 */
    }

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.min.js"
		integrity="sha256-lnH4vnCtlKU2LmD0ZW1dU7ohTTKrcKP50WA9fa350cE="
		crossorigin="anonymous"></script>

Sticky Notes

Answer 1

<击> 您只需要计算已存在的元素来计算要插入的元素的id。

$note.attr("id", $(".note.box").length + 1);

DEMO

<击>

由于您要动态删除和添加元素，添加id的正确方法是在新添加元素时为所有元素添加id。

$(".note.box").add($note).attr('id', function(i, id){ return i; });

但请注意，粘滞便笺的ID不会是常数。

如果您想插入静态ID，那么您必须维护一个计数器，如下面的评论中提到的@DBS。

DEMO