jQuery:div直到第二次点击才出现?我首先要. = \ [英] jQuery: div doesn't appear until second click? I want it on the first. =\
问题描述
首次点击:清空floatymessage div.第二次点击并在之后:有效.
First click: empty floatymessage div. second click and after: works.
jQuery:
function floatymessage(message){
var box = $j(".floatymessage")
if (box.length == 0) {
$j('body').append("<div class='floatymessage'></div>");
}
box.html(message);
// center it
box.css("left", ( $j(window).width() - box.width() ) / 2+$j(window).scrollLeft() + "px");
box.fadeIn('slow');
setTimeout(function(){$j('.floatymessage').fadeOut('slow');},3500);
}
链接:
<a href="#" onclick="floatymessage('Asking questions is not allowed.');"></a>
floarymessoge的CSS:
css for floatymessoge:
div.floatymessage {
position: absolute;
top: 20%;
width: 300px;
height: 50px;
background: black;
color: white;
text-align: center;
filter:alpha(opacity=75);
-moz-opacity:0.75;
-khtml-opacity: 0.75;
opacity: 0.75;
box-shadow: 10px 10px 5px #000;
border: 1px solid black;
border-bottom-left-radius: 5px 5px;
border-bottom-right-radius: 5px 5px;
border-top-left-radius: 5px 5px;
border-top-right-radius: 5px 5px;
line-height: 50px;
z-index: 10000;
display: none;
}
推荐答案
您带框的逻辑缺少一个步骤,如果dom中尚未包含该步骤,则需要将变量"box"设置为新的div:>
Your logic with box was missing a step, if it is not already in the dom you need to set your variable 'box' to the new div:
if (box.length == 0) {
box = $j("<div class='floatymessage'></div>");
$j('body').append(box);
}
进一步
您可以使用已设置的方法,但是在使用锚标记触发javascript事件时,您需要添加return false来阻止其像正常链接一样处理它.
You can use the method you have setup but when using an anchor tag to fire a javascript event you need to add a return false to stop it from processing it like a normal link.
<a id="mine" href="#" onclick="floatymessage('msg');return false;">run</a>
在这种情况下,最好绑定事件:
It is a better practice to bind events in this case:
$j("#mine").click(function() { floatymessage('msg'); });
使用span标签而不是要导航到url的锚标签,可以达到相同的效果.
You could achieve the same effect using a span tag instead of an anchor tag that wants to navigate to a url.
<span id="mine" onclick="floatymessage('msg');">run</span>
这篇关于jQuery:div直到第二次点击才出现?我首先要. = \的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!