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Functions

JavaScript Getting Started
Sometimes instead of just adding your javascript to the page and having the browser perform the tasks as soon as the script is read, you might want your javascript to be performed only upon the detection of a certain event. A function is a block of code which can be called from any point in a script after it has been declared. It is basically a compartmentalized JavaScript designed to accomplish a single task.
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JavaScript Getting Started
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JavaScript / Getting Started
In this article we're going to focus on a programming concept--writing your own functions. Knowing how to write your own functions will improve almost any JavaScript you create. In fact, you'll see how custom-made functions can enhance several of the JavaScript tricks you've already learned.

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JavaScript Getting Started
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JavaScript / Getting Started
To help with script programming, the JavaScript language provides many functions already built-in the browser. These functions are readily available and you can use them as you see fit. Learn the following builtin functions: the message box function and its options, conversion functions like: integer conversion, converting a string to an integer, conversion to a string, decimal conversion, precision conversion, conversion to fixed decimal and more.

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JavaScript Getting Started
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JavaScript / Getting Started
In this second part of our article on using JavaScript variables and functions to update your web pages automatically, we look at Strings, Functions and Alerts!

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JavaScript Getting Started
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JavaScript / Getting Started
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JavaScript Getting Started
Introduction to Functions
JavaScript / Getting Started
A function is an assignment that JavaScript can take care of for you. It is a technique used to isolate a group of instructional code so that other parts of the application can depend on it to provide them with a reliable result. There are two main categories of functions you will be using in JavaScript: those that have already been created for you and those you create in your code.

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JavaScript Miscellaneous
How to redefine a native JavaScript functions
JavaScript / Miscellaneous
Explains how to redefine or overload functions in JavaScript.

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JavaScript Getting Started
Declaring Variables and Functions
JavaScript / Getting Started
Now it's time to get into some really fun stuff. Yes, variables and functions. Don't worry, it's not as bad as it sounds.....let's start with declaring variables. You'll want to keep all of your variables in the HEAD section for now. Place the declarations between the SCRIPT tags inside the head section of your document.

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JavaScript Getting Started
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JavaScript / Getting Started
For this tutorial, make sure you know what variables are.

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JavaScript Getting Started
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JavaScript / Getting Started
Learn how to use functions and the different looping mechanisms in JavaScript.

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JavaScript Getting Started
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JavaScript / Getting Started
This tutorial, especially recommended to beginners, will give you a better understanding of the JavaScript language: how to use loops, arrays and functions to create a fun animation.

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JavaScript Getting Started
Using JavaScript Variables and Built-In Functions
JavaScript / Getting Started
With JavaScript you can update the content on your pages automatically every day, every hour, or every second. In this article, we'll focus on a simple script that automatically changes the date on your web page.

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JavaScript Getting Started
JavaScript for the Total Non-Programmer
JavaScript / Getting Started
This tutorial will take you step by step through the fundamentals of Javascript. You will learn how to write functions, use data from text boxes, create IF-THEN conditionals, program loops, and generally make your web page "smarter."

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JavaScript Getting Started
JavaScript (And Other) Tips & Tricks
JavaScript / Getting Started
Basic, simple tips and tricks, with code samples, on frequently asked JavaScript questions, like window sizing and positioning, window focus control, calling multiple functions from event handlers, watermarking background images, etc.

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JavaScript Date and Time
Date Functions
JavaScript / Date and Time
Automatically display the date a web page or file was last modified. This is useful because when you change a file, your web page displays a new date without any changes to HTML.

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JavaScript AJAX
Basic Ajax Routine (get & post)
JavaScript / AJAX
Regardless of what you do using Ajax, they all rely on the same basic functions. This is a very small Ajax routine (less than 3 Kb) that enables you to easily use Ajax on your site to send "GET" or "POST" requests asynchronously.

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