调用外部 javascript 文件的函数
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Calling a function of en external javascript file
提问by OrElse
In general... How can I make a call on a function of an external java script file?
一般情况下...如何调用外部 java 脚本文件的函数？
More specific...
更加具体...
- In the head tag i have
- 在 head 标签中，我有
<script type="text/javascript" src="JScript/FontSize.js"></script>
<script type="text/javascript" src="JScript/FontSize.js"></script>
The external javascript file, (that i would like to call)
FontSize.jscontains the following functions.function checkCookie() function setCookie(c_name, value, expiredays) function getCookie(c_name) function increaseFontSize() function decreaseFontSize()`The FontSize.js is located at the
~/Jscript/directory
外部 javascript 文件（我想调用）
FontSize.js包含以下函数。function checkCookie() function setCookie(c_name, value, expiredays) function getCookie(c_name) function increaseFontSize() function decreaseFontSize()`FontSize.js 位于
~/Jscript/目录
I guess the body on load should contain something like
我想负载上的身体应该包含类似的东西
<body onload="/JScript/Fontsize.js/checkCookie()">
<body onload="/JScript/Fontsize.js/checkCookie()">
Of course nothing works as it should because, i do not know how to make the call to a function to an external js file
当然，没有什么是应该的，因为，我不知道如何调用外部 js 文件的函数
回答by Nick Craver
You just call it as if it were local :)
您只需将其称为本地即可:)
<body onload="checkCookie()">
Or, do it in script:
或者，在脚本中执行：
window.onload = checkCookie;
When you declare a function and it's not in another object/namespace, it's just globally available, and you can call it as if it immediately preceded your current code. By default these functions will be on the windowobject, you can see a short demo here.
当您声明一个函数并且它不在另一个对象/命名空间中时，它只是全局可用的，您可以调用它，就好像它紧跟在您当前的代码之前一样。默认情况下，这些函数将在window对象上，您可以在这里看到一个简短的演示。
For example (doesn't matter wherethis function's defined, external or not):
例如（不管这个函数在哪里定义，外部与否）：
function myFunc() { alert('hi'); }
myFunc();
window.myFunc(); //same call, unless there's *another* myFunc in a local-er scope
回答by Gowtham
<html>
<head>
<script type="text/javascript" language="javascript" src="main.js"></script>
</head>
<body>
<!--The extranal main.js file contains samp() function.. -->
<script>
<!-- samp(); -->
</script>
</body>
</html>
