Internet Commerce

Partners & Affiliates

Developer Channel


Featured Flash FLA
Gallery Downloads 11401 Flash Movies | 5 New Flash Movies Added
What's New | Top 100

Featured FLA

»  Author: Nick Kouvaris
»  Title: Znax
»  Description: Znax is a board game. Click 4 tiles of the same color and form squares as big as you can. You will erase all the tiles inside the square and collect points. Get maximum score if you make a square with game edges.
»  More by: Nick Kouvaris


Random FLAs | Add Flash Movie
Featured Flash Site
Gallery Downloads 4941 Flash Sites | 1 New Flash Links
What's New | Top 100 Flash Site

Featured Site

»  Author Agence WOP Digital Agency
»  Title: Electricdrum
»  Description: French WOP Agency, 3D websites, Flash (Papervision, Away 3D), event or institutional projects. The agency operates on all digital projects: consulting, design, graphic design, development, online communication. The WOP agency follows you on the implementation of original, creative and optimized digital projects.


Random Links | Add your own Flash Related Links
Flash Tutorials 1481 Tutorials 7 New Tutorials Added!
What's New | Top100

» How To Make A Simple Animation Using Christmas Clips
» Simple Step by step flash game tutorial Spot the diffrence
» How To Make A Moving Text Slide
» Create Flash Banner With Text Float Effect
» How To Make Zoo Photos Slideshow
» How To Make A Dolphin Photos Slideshow
» How To Make A Fathers Day Slideshow
» How To Make A Transparent Background of Your Flash File
» Create Flash Banner With Text Disco Light Effect Today we will introduce you a Text Disco Light eff
» Unknown Tag: Title10
Random Tutorial | Add Site


Tutorials Home What's New Top Rated Submit myTutes Random!

Search Tutorials


Tutorials Tutorials » Actionscripting/Basic

Categories Understanding Operators
Author: Eddie Carroll | Website: http://www.flashkit.com |

 
Page 3
«prev 1 2 3 4 5 6 7 next»

String operators are used to evaluate and compare strings. A practical application for these operators would be searching and sorting names. Be careful not to mixed up your data types when evaluating expresssions. I keep harping on this fact but as a novice programmer it would have to be one of the greatest sources of mistakes.

String Operators
""
&
eq
ne
gt
lt
le
ge
String
Concatenate
Equals
Not Equals
Greater Than
Less Than
Less Than or Equals to
Greater Than or Equal to

The first operator is the string operator, "". When ever you see these in an expression they will indicate to you and the computer that whatever is in between the quote marks is a string of characters.

The & symbol is for concatenatation. Simply put, you would use this when you want to append a string, variable or function onto the end of another string, variable or function. It is important to note that any numbers used in a string expression will be automatically converted to a string. ie

Set Variable: "age" = 5
Set Variable: "message" = "I am " & age & " years old"

This will give the variable 'message' the string value of "I am 5 years old".

The rest of the operators (eq, ne, gt, lt, le, ge) are called comparison operators because you use them to compare between strings or variables assigned a string. Their main function is to determine the alphabetical order based on the first letter of the string. This isn't to say you can't compare the second and third letters, it just that these just require a bit more scripting (see the Substring function).

Important Note: Strings are case sensitive, "Hi" does not equal "hi" and small letters are greater than capital letters. This is a little confusing at first but if you look at an ASCII table, the code for the letter 'A' is 65 and the code for the letter 'a' is 97. (every letter, number and symbol on your keyboard is assigned a unique ASCII code, there are many other, non-keyboard, codes but you don't need to know about these at this point.)

Here are some examples of string operators in action.

Set Variable: "input" = "john"
Set Variable: "accountname" = "joe"
If (input eq accountname)
 Set Variable: "output" = "Hello, " & accountname & " welcome back"
Else
 Set Variable: "output" = "User not recognised"
End If

«prev 1 2 3 4 5 6 7 next»

» Level Basic

Added: : 2000-09-14
Rating: 8.76 Votes: 62
Hits: 5049
» Author
Eddie is the Content Editor at Flashkit.com and is actually a sentient Gateway Solo 2150xl notebook that suffers from acute lysdexia and caffeine addiction. He is carried on the shoulders of a semi-autonomous human called "Body".
» Download
Download the files used in this tutorial.
Download (10 kb)
Get conversion and unzipping tools for PC and Mac here!

» Forums
More help? Search our boards for quick answers!

Please rate this tutorial, 10 is the top rating, you can also click the comments link to read/write a review.
10 9 8 7 6 5 4 3 2 1
Read or Post Comments