我正在尝试制作一个按钮,如果我们点击它会打开一个弹出窗口(模态)并且它正在工作,但唯一的问题是我需要点击它两次才能打开它,但我不知道如何解决它。
// Get the modal
function modal1() {
var modal = document.getElementById("myModal");
// Get the button that opens the modal
var btn = document.getElementById("myBtn");
// Get the <span> element that closes the modal
var span = document.getElementsByClassName("close")[0];
// When the user clicks the button, open the modal
btn.onclick = function() {
modal.style.display = "block";
}
// When the user clicks on <span> (x), close the modal
span.onclick = function() {
modal.style.display = "none";
}
// When the user clicks anywhere outside of the modal, close it
window.onclick = function(event) {
if (event.target == modal) {
modal.style.display = "none";
}
}
}
/* The Modal (background) */
.modal {
display: none;
/* Hidden by default */
position: fixed;
/* Stay in place */
z-index: 1;
/* Sit on top */
padding-top: 100px;
/* Location of the box */
left: 0;
top: 0;
width: 100%;
/* Full width */
height: 100%;
/* Full height */
overflow: auto;
/* Enable scroll if needed */
background-color: rgb(0, 0, 0);
/* Fallback color */
background-color: rgba(0, 0, 0, 0.4);
/* Black w/ opacity */
}
/* Modal Content */
.modal-content {
background-color: #fefefe;
margin: auto;
padding: 20px;
border: 1px solid #888;
width: 80%;
}
/* The Close Button */
.close {
color: #aaaaaa;
float: right;
font-size: 28px;
font-weight: bold;
}
.close:hover,
.close:focus {
color: #000;
text-decoration: none;
cursor: pointer;
}
<!-- Trigger/Open The Modal -->
<button id="myBtn" onclick="modal1()">Open Modal</button>
<!-- The Modal -->
<div id="myModal" class="modal">
<!-- Modal content -->
<div class="modal-content">
<span class="close">×</span>
<p>Some text in the Modal..</p>
</div>
</div>
先谢谢你:) ps:我很早就开始学习js(初学者)
答案 0 :(得分:1)
如果您按顺序阅读代码,那就相当简单了。
modal1()
函数。btn.onclick
侦听器,等待点击。就是这样。
现在,您必须再次单击才能触发您刚刚创建的侦听器。
就此而言,您创建的新 onclick
侦听器会覆盖按钮上的当前 onclick
,我不确定您为什么要这样做。
简单的解决方案是将 modal.style.display = "block"
直接放入 modal1()
。为什么要覆盖 onclick
函数?
function modal1() {
modal.style.display = "block";
}