我正在使用JQuery将元素添加到列表中,它正在工作,但是元素是向后的(因为缺少更好的术语),我需要知道如何使它们保持顺序,而不是= { 5,4,3,2,1}应该= {1,2,3,4,5}。
我不知道该怎么做,但我希望你们能帮助我。
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.4.1.min.js"></script>
<script>
var counter = 0
$(document).ready(function() {
$("#BtnRev").click(function() {
$("#div1").remove();
});
$("#BtnAdd").click(function() {
counter = counter + 1;
$("#div2").prepend("<li>", StepTitle.value, Description.value, " </li>", "Counter>>>", counter, "</br>");
});
});
</script>
<br/>
<button type="button" ID="BtnAdd" class="btn btn-basic">Add</button>
<button type="button" ID="BtnAdd2" class="btn btn-warning">Button</button>
<button type="button" ID="BtnRev" class="btn btn-danger">Remove last step (Not yet)</button>
<hr/>
<label for="StepTitle">Title: </label>
<input type="text" id="StepTitle" class="form-control" placeholder="Title..." />
<label for="Description">Description: </label>
<textarea rows="5" id="Description" class="form-control"></textarea>
<hr />
<script src="Test2.js"></script>
<div id="div1">
<p>This is meant to be deleted</p>
</div>
<div class="well">
<h4>Things go here!</h4>
<ol id="div2">
<!---->
</ol>
</div>
正如我之前解释的那样,我得到的输出为{5,4,3,2,1},应为{1,2,3,4,5} ...预先感谢!>
答案 0 :(得分:0)
当您应该将值追加到列表时,您正在尝试将值添加到列表中。追加会将术语添加到列表的末尾,以保持所需的顺序。
更改行
$("#div2").prepend("<li>", StepTitle.value, Description.value, " </li>", "Counter>>>", counter , "</br>");
到
$("#div2").append("<li>", StepTitle.value, Description.value, " </li>", "Counter>>>", counter , "</br>");
,您应该看到预期的输出。希望对您有帮助!
答案 1 :(得分:0)
将prepend
更改为append
<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.4.1.min.js"></script>
<script>
var counter = 0
$(document).ready(function() {
$("#BtnRev").click(function() {
$("#div1").remove();
});
$("#BtnAdd").click(function() {
counter = counter + 1;
$("#div2").append("<li>", StepTitle.value, Description.value, " </li>", "Counter>>>", counter, "</br>");
});
});
</script>
<br/>
<button type="button" ID="BtnAdd" class="btn btn-basic">Add</button>
<button type="button" ID="BtnAdd2" class="btn btn-warning">Button</button>
<button type="button" ID="BtnRev" class="btn btn-danger">Remove last step (Not yet)</button>
<hr/>
<label for="StepTitle">Title: </label>
<input type="text" id="StepTitle" class="form-control" placeholder="Title..." />
<label for="Description">Description: </label>
<textarea rows="5" id="Description" class="form-control"></textarea>
<hr />
<script src="Test2.js"></script>
<div id="div1">
<p>This is meant to be deleted</p>
</div>
<div class="well">
<h4>Things go here!</h4>
<ol id="div2">
<!---->
</ol>
</div>
注意:
.prepend()
方法将指定的内容作为jQuery集合中每个元素的第一个子元素插入(要将其作为 last 子元素插入,请使用.append()
)。