如何从html调用jQuery代码内的外部函数? [英] How to call external function inside jquery code from html?
问题描述
我需要加载功能以从HTML文件中包含的外部JS获取数据，而我正在这样做:
I need to load function to get data from external JS included in HTML file, and I'm doing this:
<body onLoad="getTicket();">
......
</body>
或者这个:
<html>
<body>
<head>
<script src="js/jquery.js" type="text/javascript"></script>
<script src="js/functions.js" type="text/javascript"></script>
<script>
$(document).ready(function() {
getTicket();
});
<script>
</head>
<body>
</html>
或者这个:
<html>
<body>
<head>
<script src="js/jquery.js" type="text/javascript"></script>
<script src="js/functions.js" type="text/javascript"></script>
<script>
getTicket();
<script>
</head>
<body>
</html>
我在function.JS中有这个
And I have this in functions.JS:
functioOne() {
}
functionTwo() {
}
$(document).ready(function() {
...
.....
function getTicket() {
//to do
}
});
但是不起作用，并且在控制台中显示以下内容:
But does'nt work and in the console display this:
Uncaught ReferenceError: getTicket is not defined
致谢.
推荐答案
您的 getTicket 函数仅在jQuery闭包(匿名函数)的上下文(范围)中定义.而是在全局范围内定义它(在文件的其他位置，而不是功能参数").
Your getTicket function is defined only in the context (scope) of the jQuery closure (anonymous function). Define it in the global scope instead (elsewhere in the file and not as a "function parameter").
如果需要该范围的变量，请将其封装在名称空间(对象)中，或将其声明为 window.getTicket = function(){/* ... */} .
If you need variables from that scope, encapsulate them in a namespace (an object), or declare it as window.getTicket = function() { /* ... */}.
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