jQuery addClass()无法与event.target一起使用 [英] jquery addClass() not working with event.target
问题描述
请帮助.
为什么jQuery addClass()无法与event.target一起使用?
我已经编写了一个代码，它应该在单击时在目标上添加类，但是它不起作用，并且说e.target.addClass不是函数.
代码:
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Class Test</title>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<style>
.big {
font-size: 5em;
}
.small {
font-size: 1em;
}
</style>
</head>
<body>
<p>This is the text</p>
<script>
$(function() {
$("p").click(function(e) {
$("a").removeClass("big").addClass("small");
$("this").addClass("big"); //This doesn't work
e.target.addClass("big"); //nor this one
});
});
</script>
</body>
</html>
基本上，e.target将是一个javascript对象，您必须先将其转换为Jquery对象，然后才能使用其像.addClass()这样的功能
尝试
$(e.target).addClass("big");
同时，由于您将this作为字符串传递，因此$("this").addClass("big");此代码将不起作用. this也是一个javascript对象，您也需要将其转换为类似于$(this)
Please help.
Why is the jquery addClass() not working with event.target?
I have made a code and it supposed to add class on the target when clicked, but it does not work, and it says,e.target.addClass is not a function.
CODE:
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Class Test</title>
<script src="http://code.jquery.com/jquery-1.11.0.min.js"></script>
<style>
.big {
font-size: 5em;
}
.small {
font-size: 1em;
}
</style>
</head>
<body>
<p>This is the text</p>
<script>
$(function() {
$("p").click(function(e) {
$("a").removeClass("big").addClass("small");
$("this").addClass("big"); //This doesn't work
e.target.addClass("big"); //nor this one
});
});
</script>
</body>
</html>
Basically e.target will be a javascript object, you have to convert it into a Jquery object before utilizing its functions like .addClass()
Try,
$(e.target).addClass("big");
and at the same time, $("this").addClass("big"); this code will not work since you are passing this as a string. this also a javascript object, you need to convert that too as a jquery object like $(this)
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