jquery得到跨度值

时间:2014-06-23 17:49:30

标签: javascript jquery

我很难获得span标记的值,然后在点击时将值传递到输入字段。

$( document ).ready(function() {

    $( "input" ).on( "click", function() {
        $( ".kb" ).toggle();
    });

    $( ".kb .row span" ).on( "click", function() {
        var key = $('this').text();
        alert(key)
        $("body").find("input").append(key);

    });

});


<input type="text" />

<div class="kb">
  <div class="row">
    <span>q</span>
    <span>w</span>
    <span>e</span>
    <span>r</span>
    <span>t</span>
    <span>y</span>
    <span>u</span>
    <span>i</span>
    <span>o</span>
    <span>p</span>
    <span>[</span>
    <span>]</span>    
  </div>

  <div class="row">
    <span>a</span>
    <span>s</span>
    <span>d</span>
    <span>f</span>
    <span>g</span>
    <span>h</span>
    <span>j</span>
    <span>k</span>
    <span>l</span>
    <span>;</span>
    <span>'</span>
  </div>  


  <div class="row">
    <span>z</span>
    <span>x</span>
    <span>c</span>
    <span>v</span>
    <span>b</span>
    <span>n</span>
    <span>m</span>
    <span>,</span>
    <span>.</span>
    <span>/</span>
  </div>  

3 个答案:

答案 0 :(得分:3)

你的代码中有两个错误,

  1. 删除this引用

    所包围的引号

    var key = $(this).text();

  2. input [type = text]是一个void元素,您试图将文本附加到其中,因此它无效。

    $("input").val(key); //use .val() instead of .append()

  3. 完整代码将是,

    $(".kb .row span").on("click", function() {
      $("input").val($(this).text());
    });
    

    要附加值,请使用like,

    $(".kb .row span").on("click", function() {
      var text = $(this).text();
      var elem = $('input');
      elem.val(elem.val() + text);
    });
    

    DEMO

答案 1 :(得分:1)

this不需要引号(否则你真的在寻找像<this>这样的元素):

var key = $(this).text();

答案 2 :(得分:1)

http://jsfiddle.net/dgmT5/

您的$(this)引用错误,您应该使用.val()来更改输入值。

$(".kb .row span").on("click", function() {
  var key = $(this).text();
  alert(key)
  $("body").find("input").val(key);
});