Page 206 - Web_Application_v2.0_C12_Fb
P. 206
return value; // Optional
}
functionName (argument1, argument2, ...); //invoking the function
For example:
function greet() {
Notes
document.write("Hello, World!");
Number of parameters (also called arguments)
}
is not fixed. You may have no parameters or as
greet(); many as your function requires.
Output:
Hello, World!
Named Function
A function with a specific name that can be called anywhere in the code after its declaration.
The syntax to create named function is as follows:
function functionName() {
// code block
}
functionName();
Example 15: To demonstrate the use of named function
<!DOCTYPE HTML>
<HTML>
<HEAD>
<TITLE>Named Function in JavaScript</TITLE>
</HEAD>
<BODY>
<SCRIPT>
function displayMessage() {
document.write("This is a Named Function Example!");
}
displayMessage();
</SCRIPT>
</BODY>
</HTML>
Output:
204 Touchpad Web Applications (Ver. 2.0)-XII

