Chapter 9. JavaScript: Functions

 

Form ever follows function.

 
 --Louis Sullivan
 

E pluribus unum. (One composed of many.)

 
 --Virgil
 

O! call back yesterday, bid time return.

 
 --William Shakespeare
 

Call me Ishmael.

 
 --Herman Melville
 

When you call me that, smile.

 
 --Owen Wister

OBJECTIVES

In this chapter you will learn:

  • To construct programs modularly from small pieces called functions.

  • To create new functions.

  • How to pass information between functions.

  • Simulation techniques that use random number generation.

  • How the visibility of identifiers is limited to specific regions of programs.

Outline

9.1

Introduction

9.2

Program Modules in JavaScript

9.3

Programmer-Defined Functions

9.4

Function Definitions

9.5

Random Number Generation

9.6

Example: Game of Chance

9.7

Another ...

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