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In general... How can I make a call on a function of an external java script file?
More specific...
<script type="text/javascript" src="JScript/FontSize.js"></script>
The external javascript file, (that i would like to call) FontSize.js contains 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
I guess the body on load should contain something like
<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
713
Calling a function using external JavaScript file Once the JavaScript file is created, we need to create a simple HTML document. To include our JavaScript file in the HTML document, we have to use the script tag <script type = "text/javascript" src = "function.
JavaScript functions can be created and stored in external files. Existing JavaScript libraries can also be linked into a component or . a5w page.
The JavaScript call() Method The call() method is a predefined JavaScript method. It can be used to invoke (call) a method with an owner object as an argument (parameter). With call() , an object can use a method belonging to another object.
Step 1: Firstly, we have to type the script tag between the starting and closing of <head> tag just after the title tag. And then, type the JavaScript function. Step 2: After then, we have to call the javaScript function in the Html code for displaying the information or data on the web page.
You just call it as if it were local :)
<body onload="checkCookie()">
Or, do it in script:
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 window object, you can see a short demo here.
For example (doesn't matter where this function's defined, external or not):
function myFunc() { alert('hi'); }
myFunc();
window.myFunc(); //same call, unless there's *another* myFunc in a local-er scope
<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>
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