Free scripts
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(New page: == '''What Is a Script?''' == A script is a set of instructions. The computer executes the instructions, then returns data, a value -- which could be a number, a string, a list, or anothe...) |
(New page: == '''What Is a Script?''' == A script is a set of instructions. The computer executes the instructions, then returns data, a value -- which could be a number, a string, a list, or anothe...) |
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[edit] What Is a Script?
A script is a set of instructions. The computer executes the instructions, then returns data, a value -- which could be a number, a string, a list, or another data type.
[edit] What is a string?
A string is a type of data: it's zero or more characters, it's a string of text.
[edit] What is a character?
A character is a single letter, digit, space, punctuation, carriage return, tab, or other code. Most characters can be typed via the keyboard.
'A' is a character, '5' is a character, '(' is a character.
"A5(" is a string -- it's three characters in a row.
Characters and strings are just two of the many types of data Frontier supports. These will be explained in more detail later.
The important thing to know is: scripts act on data, and there are many types of data.
A very simple script does nothing but return a value. To return a value, it uses the "return" keyword.
The word "return" is a word that UserTalk understands. It means: return this value to the script that called me.
A very simple script might look like this:
return ("This is a string.")
The return keyword is usually followed by open and close parentheses. What appears between the parentheses is what gets returned.
[edit] Returned Where?
A script is called -- usually by another script. In some cases a script may be called by the Frontier application itself. And of course you can run scripts yourself -- and those scripts may in turn call other scripts.
When a script is called, it runs and returns data to the caller.
