我需要一个函数来在单击引号时获取 .themechoice 跨度的 ID,并将其存储在变量“主题”中,以便下面的函数将部分的主题更改为匹配的 .themeChoice 跨度 ID
jq
$('.themeChoice').click(function() {
var theme = //need function here
$(this).parent().find('section').addClass(theme);
}); //end click a theme
html 在头标签中
<style>
.light {
background-color: lightyellow;
border: double lightgreen small;
border-radius: 15px;
padding: 1em;
margin: 1em;
}
.dark {
background-color: black;
border: groove darkgray medium;
border-radius: 15px;
padding: 1em;
margin: 1em;
}
.neutral {
background-color: tan;
border: inset brown thick;
border-radius: 15px;
padding: 1em;
margin: 1em;
}
img {
width: 200px;
}
</style>
正文中的html
<section>
<p><h3>Pick a theme by clicking the quote you like most</h3></p>
<span="" id="light" class="themeChoice"><p>Future's so bright, you'll need sunshades.</p></span>
<span id="dark" class="themeChoice"><p>“Everyone is a moon, and has a dark side which he never shows to anybody.” -Mark Twain</p></span>
<span id="neutral" class="themeChoice"><p>“The hottest place in Hell is reserved for those who remain neutral in times of great moral conflict.” -Martin Luther King, Jr.</p></span>
</section>
最佳答案
可以使用this.id
获取被点击元素的id,也就是这里的类名。
$('.themeChoice').click(function() {
var theme = this.id;
$(this).parent("section").addClass(theme);
});
此外,在您的情况下,.themeChoice
的父元素是该部分。您使用的选择器是错误的。
DEMO
下面给出了删除以前的主题类并添加较新的主题类的稳定代码,
$('.themeChoice').click(function() {
var theme = this.id;
var $parent = $(this).parent("section");
$parent.removeClass($parent.data("theme")).addClass(theme);
$parent.data("theme", theme);
});
DEMO
关于javascript - 单击跨度时更改主题,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/36534663/