Jquery将字符串转换为对象
问题描述:
我有一些代码,我试图将一个div的id值传递给一个函数,该函数然后淡出第一个div然后淡入第二个。我知道该函数接受对象,因为当我试图显示给它的值$ alert()时,我得到[Object object]。当单击其中一个按钮时,它将尝试查找可见div的id,然后将其传递给fade函数,但它会找到id并将其保存在一个字符串中,我需要将其转换为对象。这里是我的代码:Jquery将字符串转换为对象
<script type="text/javascript">
$(function() {
$('#step1').fadeIn("slow");
$('#btn1').addClass("btn-primary active");
$('#btn1').click(function() {
\t var id = $(".editor .steps").filter(function() { //this gets the value of the active div and saves it into id.
\t \t if ($(this).css('display') == 'block') {
\t \t \t return true;
\t \t }
\t }).attr('id');
\t fade(id, $('#step1')) //tyring to send id and the the step1 to the fade function
});
$('#btn-step2-video').click(function() {
fade($('#step1'), $('#step2-video'));
$('#btn1').addClass("btn-primary");
$('#btn2').addClass("btn-primary active");
});
$('#btn-step2-picture').click(function() {
fade($('#step1'), $('#step2-picture'));
btn2.addClass("btn-primary active");
});
var fade = function(fadeout, fadein){
\t $(fadeout).fadeOut("slow");
$(fadein).fadeIn("slow");
}
});
</script>
Here is the HTML of the page:
<!-- begin snippet: js hide: false -->
<div id="steps">
\t <button id="btn1" type="button" class="btn btn-primary btn-lg btn-step">1</button>
\t <a class="btn-description">Choose type of ad</a>
\t <button id="btn2" type="button" class="btn btn-primary btn-lg btn-step">2</button>
\t <a class="btn">Confirmation & Payment</a>
</div>
<!--
Begining of editor
-->
<div class="editor">
<!--
Step 1 of the editor
-->
<div id="step1" class="steps" style="display:none;" >
\t <a id="btn-step2-video" style="position:fixed; top: 45%; left: 25%; cursor:pointer"><div class="btn-ad-choice ad-choice">
\t \t <br>
\t \t <p><b>Create a video ad:</b></p>
\t \t <video width="200" height="113" autoplay="autoplay" mute>
\t \t \t <source src="video/exemple.mp4" type="video/mp4">
\t \t \t Your browser does not support the video tag.
\t \t </video>
\t </div></a>
\t
\t <a id="btn-step2-picture" style="position:fixed; top: 45%; right: 25%; cursor:pointer"><div class="btn-ad-choice ad-choice">
\t \t <br>
\t \t <p><b>Create a picture ad:</b></p>
\t \t <img src="images/adexemple.jpg" alt="Exemple of a picutre ad" height="113" width="200">
\t </div></a>
</div>
<!--
Step 2 for video of the editor
-->
<div id="step2-video" class="steps" style="display: none; height:400px; width:100%; background:gray">
\t video
</div>
<!--
Step 2 for pictures of the editor
-->
<div id="step2-picture" class="steps" style="display: none;">
\t picture
</div>
<!--
end of editor
-->
</div>
编辑
我编辑我的JavaScript来:
$('#btn1').click(function() {
\t fade($(".editor .steps:visible"), $('#step1')); //tyring to send id and the the step1 to the fade function
});
的建议:阿伦P约翰尼拉 感谢;)
答
jQuery对象接受一个选择为好,所以我可以看到的唯一问题是你没有使用id selector,要传递的ID,并用它作为一个element selector所以
fade('#'+id, $('#step1'))
应该工作。
但是你可以通过使用visible selector到
$('#btn1').click(function() {
fade($(".editor .steps:visible"), $('#step1')) //tyring to send id and the the step1 to the fade function
});
可以共享HTML样本简化它 – 2015-02-23 03:58:37