在 jquery 中传递变量
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Passing variables in jquery
提问by Hussein
What is the best way to pass the var full to function b. I don't want to use global variables. Is return the only option.
将 var full 传递给函数 b 的最佳方法是什么？我不想使用全局变量。是退货的唯一选择。
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js" type="text/javascript"></script>
<style>
.aaa, .bbb, .ccc { width:100px; height:100px;background-color:#ccc;margin-bottom:5px;}
</style>
<body class="123">
<p id="ptest"></p>
<p class="aaa" id="aaaid"></p>
<p class="bbb" id="bbbid"></p>
<p class="ccc" id="cccid"></p>
<div></div>
</body>
<script type="text/javascript">
$("body").click(function(e){
var name = $(e.target)[0].nodeName;
var nameid = $(e.target)[0].id;
var classname = $(name+"#"+nameid).attr('class');
var full = name+"#"+nameid;
console.log(nameid);
function b(){
alert(full);
};
});
</script>
回答by Marcus Whybrow
You can pass a variable to a function by defining it as follows:
您可以通过如下定义将变量传递给函数：
function b(x) {
alert(x);
}
and then calling it by stating its name and passing a variable as the argument:
然后通过声明它的名称并传递一个变量作为参数来调用它：
b(full);
So in the context of your code:
所以在你的代码上下文中：
$("body").click(function(e){
var name = $(e.target)[0].nodeName;
var nameid = $(e.target)[0].id;
var classname = $(name+"#"+nameid).attr('class');
var full = name+"#"+nameid;
console.log(nameid);
function b(x){
alert(x);
};
b(full);
});
回答by Patrick Evans
Unless you dont want function b to exist, or used outside outside of the click function, i would move it outside the anonymous function. And then just specify the arguments in the definition then just pass them like normal
除非您不希望函数 b 存在，或者在单击函数之外使用，否则我会将其移到匿名函数之外。然后只需在定义中指定参数，然后像往常一样传递它们
Example
例子
<script type="text/javascript">
$("body").click(function(e){
var name = $(e.target)[0].nodeName;
var nameid = $(e.target)[0].id;
var classname = $(name+"#"+nameid).attr('class');
var full = name+"#"+nameid;
console.log(nameid);
b(full);
});
function b(full)
{
alert(full);
};
</script>
回答by jon_darkstar
argument? is there something im missing here?
争论？我这里有什么遗漏吗？
function b(x){ alert(x); };
call with
打电话给
b(full);
回答by jmort253
// define b
function b(full) {
alert(full);
}
Actually, you aren't using global variables. You're defining them inside the JQuery anonymous function bound to the body element.
实际上，您没有使用全局变量。您在绑定到 body 元素的 JQuery 匿名函数中定义它们。
