The Analytical Engine Online: Cordon Bleu Programming

This module provides you with a hands-on introduction to JavaScript, a programming language that can be embedded directly in an HTML document and interpreted by your browser. We provide you with both a JavaScript/HTML intrepreter that allows you to experiment with these languages, and a collection of JavaScript programs that illustrate the fundamentals of programming in a realistic and interesting way.

Lab 5.1: Your Caribbean Vacation Planner

Lab 5.2: HTML and JavaScript

Lab 5.3: Events, Functions and Statements

Lab 5.4: Control Structures

Lab 5.5: Objects

Lab 5.6: Tricks of the Trade

Examine how HTML links, forms, and image maps support interactive interfaces

Illustrate the structure of JavaScript programs, and show how they are described in an HTML document

Review the JavaScript code that implements a “Caribbean Vacation Planner” to see the range of statements and data types that can be expressed in JavaScript.

Show you how to write, test, and debug JavaScript functions of your own

Describe the programming process in general, life cycle terms

Module Quiz

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References

Every program that you have used - from your word processor¹ to your web browser² - had to be written in a programming language³. This text module provides you with a brief but realistic introduction to the process and the means by which programs⁴ are written. It does so in the context of the web-based programming language, JavaScript.
¹pp. 28ñ32, 48ñ50
²pp. 9, 14ñ15, 70ñ71, 143, 146
³pp. 16, 126, 218-220
⁴pp. 13, Mod. 2, 234, 273, 285

JavaScript⁵ is a relatively simple language that illustrates many traditional programming topics, including: basic data types⁶ and statements, control structures⁷, and subprograms. It has the added virtue of having been designed to work within and with HTML⁸ code. That is, JavaScript programs are written directly into the HTML⁹ that describes a Web¹⁰ page, and the language has features which allow programs to interact with the components of the pages.
⁵pp. 126, 127, 139ñ196, 149
⁶pp. 151ñ152, 220-221,
⁷p. 222
⁸pp. 29, 70, 82, 89, 90-91
⁹pp. 29, 70, 82, 89, 90-91
¹⁰pp. 9, 14ñ15, 67ñ71

Modules 2 and 3 explored computer applications, local and global. Metaphorically speaking, using such programs is like being a guest at a dinner party-the meal had been chosen and prepared for you, and all you had to do was enjoy it. In Module 4 you designed pages of your own, and got a feeling for what it's like to host a dinner party. You chose what was to be presented, and how it was to be organized. In this module, we take you into the "electronic kitchen" and show you how to prepare the meal. At the end, you will have more than a cookbook knowledge of programming, and will be on the way toward knowing how to create recipes of your own.

	Print References
Every program that you have used - from your word processor¹ to your web browser² - had to be written in a programming language³. This text module provides you with a brief but realistic introduction to the process and the means by which programs⁴ are written. It does so in the context of the web-based programming language, JavaScript.	¹pp. 28ñ32, 48ñ50 ²pp. 9, 14ñ15, 70ñ71, 143, 146 ³pp. 16, 126, 218-220 ⁴pp. 13, Mod. 2, 234, 273, 285
JavaScript⁵ is a relatively simple language that illustrates many traditional programming topics, including: basic data types⁶ and statements, control structures⁷, and subprograms. It has the added virtue of having been designed to work within and with HTML⁸ code. That is, JavaScript programs are written directly into the HTML⁹ that describes a Web¹⁰ page, and the language has features which allow programs to interact with the components of the pages.	⁵pp. 126, 127, 139ñ196, 149 ⁶pp. 151ñ152, 220-221, ⁷p. 222 ⁸pp. 29, 70, 82, 89, 90-91 ⁹pp. 29, 70, 82, 89, 90-91 ¹⁰pp. 9, 14ñ15, 67ñ71
Modules 2 and 3 explored computer applications, local and global. Metaphorically speaking, using such programs is like being a guest at a dinner party-the meal had been chosen and prepared for you, and all you had to do was enjoy it. In Module 4 you designed pages of your own, and got a feeling for what it's like to host a dinner party. You chose what was to be presented, and how it was to be organized. In this module, we take you into the "electronic kitchen" and show you how to prepare the meal. At the end, you will have more than a cookbook knowledge of programming, and will be on the way toward knowing how to create recipes of your own.

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