Adding arguments to a JavaScript function

You can create a function in JavaScript and add arguments to it. An argument is one or more variables that are declared within the parenthesis of a function definition. The syntax is

function  MyFunction(x,y,z)

{  statements;}

You can also use the return keyword to return a value to the statement.

function  MyFunction(x,y,z)

{  return value; }


function Area_Rect(width,length)

{ area=width*length;

return area;}

You can call the function by assigning values to the arguments, such as


0r alert (“The area of a rectangle is”+Area_Rect(4,6)

The area of the rectangle if width=4 and length=6 is:

Please follow Lesson 13 and Lesson 14 to learn more about function.