JavaScript Design

Creating Functions

Creating a function involves stating a function name and then adding a series of statements or other functions between curly braces. The general format is as follows:

						function functionName(optional arguments) {
   statements or other functions 
   } 

For example, the following function in the following script can be used to determine the number of 1 × 8 boards needed for a shed’s walls. The two arguments in the function, front and side, are used as variables in two prompt functions.

<html> 
<head> 
<title>Shed Planner</title> 
<script language="JavaScript"> 
function shedWalls(front,side) { var front=prompt("How many feet across the front?",""); var side=prompt("How many feet along the side?",""); var numFront=(front * 12 * 2)/8; var ...