jquery :输入选择器，而不是选择:选择元素？

Question

我试图使用jQuery迭代一个输入字段表，获取每个值并连接到一个字符串。在单击submit按钮时，我想连接输入字段，即:input和:select。我读到jquery输入选择器也会选择select字段，但这里似乎并非如此。我尝试过将多个类型传递到find()中，但这也不起作用。有小费吗？

这里是jQuery

 $("#SubmitButton").click(function(){
   var Teams = $(".NewTeam").length;   //working
   event.preventDefault(); 
   alert("clicked lets do ajax");
   for (var i=0; i < Teams; i++){
      $('.NewTeam').eq(i).find('input').each(function () {
        alert(this.value); // "this" is the current element in the loop
      });
   }
});

HTML标记

 <div class = "teams">
    <fieldset class="vfb-fieldset vfb-fieldset-1 str8-sports-roster-upload NewTeam"  style = "display: none">
     <table class = "PlayerInfoTable">
      <tr class = "PlayerRow">
       <td><strong style = "vertical-align:top">Player Info: </strong></td>
       <td><input class="teamInput" name = "player[]" type="text" placeholder="Player Full Name" required/></td>
       <td><input class="teamInput" name = "player[]" type="text" placeholder="Player Number" required/> </td>
       <td><select class="teamInput" name = "player[]" type="text" placeholder="Jersey Size" required/><option selected = "selected">Jersey Size</option><option>Youth Small</option><option>Youth Medium</option><option>Youth Large</option><option>Youth X-Large</option><option>Small</option><option>Medium</option><option>Large</option><option>Extra Large</option> </td>
       <td><select class="teamInput" name = "player[]" type="text" placeholder="Short Size"><option selected = "selected">Short Size</option><option>Youth Small</option><option>Youth Medium</option><option>Youth Large</option><option>Youth X-Large</option><option>Small</option><option>Medium</option><option>Large</option><option>Extra Large</option></select> </td>
       <td><select class="teamInput" name = "player[]" type="text" placeholder="Male/Female" required</select> <option>Male</option><option>Female</option> </td>
      </tr>
     </table>
    </fieldset>
    <fieldset class="vfb-fieldset vfb-fieldset-1 str8-sports-roster-upload NewTeam"  style = "display: none">
     <table class = "PlayerInfoTable">
      <tr class = "PlayerRow">
       <td><strong style = "vertical-align:top">Player Info: </strong></td>
       <td><input class="teamInput" name = "player[]" type="text" placeholder="Player Full Name" required/></td>
       <td><input class="teamInput" name = "player[]" type="text" placeholder="Player Number" required/> </td>
       <td><select class="teamInput" name = "player[]" type="text" placeholder="Jersey Size" required/><option selected = "selected">Jersey Size</option><option>Youth Small</option><option>Youth Medium</option><option>Youth Large</option><option>Youth X-Large</option><option>Small</option><option>Medium</option><option>Large</option><option>Extra Large</option> </td>
       <td><select class="teamInput" name = "player[]" type="text" placeholder="Short Size"><option selected = "selected">Short Size</option><option>Youth Small</option><option>Youth Medium</option><option>Youth Large</option><option>Youth X-Large</option><option>Small</option><option>Medium</option><option>Large</option><option>Extra Large</option></select> </td>
       <td><select class="teamInput" name = "player[]" type="text" placeholder="Male/Female" required</select> <option>Male</option><option>Female</option> </td>
      </tr>
     </table>
    </fieldset>
 </div>

Answer 1

由于您在这里使用了event.preventDefault();，您应该将$("#SubmitButton").click(function(){更改为$("#SubmitButton").click(function(event){

当您使用eventHandler时，您应该添加一个参数。

在HTML中，您还应该做一个更改，其中使用了选择框，这需要标记，开始和结束，您还没有正确地启动和结束标记，下面是一行

<select class="teamInput" name = "player[]" type="text" placeholder="Male/Female" required</select> <option>Male</option><option>Female</option>  

更改为

<select class="teamInput" name = "player[]" placeholder="Male/Female" required><option>Male</option><option>Female</option></select>

另外，您还可以使用类选择器，在每个元素中，.teamInput都是常见的。

因此，您可以轻松地将其加起来，然后按照jQuery来查看它的工作情况。

$("#SubmitButton").click(function(event){
    event.preventDefault();
    $(".teamInput:input:visible").each(function() {
       alert($(this).val());
    });
});

工频：https://jsfiddle.net/qffL6dsp/1/

Answer 2

替换

   $('.NewTeam').eq(i).find('input').each(function () {

用简单的

  $('.NewTeam').eq(i).find(':input').each(function () {

input只选择输入标记，:input也选择其他表单输入元素。

Answer 3

首先，需要将事件作为参数传递给单击函数，然后修改.each的选择器，以找到select元素，因为' input‘只会找到输入元素，而不是select元素：

$("#SubmitButton").click(function(event){
   var Teams = $(".NewTeam").length;   //working
   event.preventDefault(); 
   alert("clicked lets do ajax");
   for (var i=0; i < Teams; i++){
      $('.NewTeam').eq(i).find('input, select').each(function () {
          alert(this.value); // "this" is the current element in the loop
          console.info($(this).text() ); this will print in console in blue color the text of <option> as you have not assigned value attribute
      });
   }
});