MACROMEDIA FLASH 8-LEARNING ACTIONSCRIPT 2.0 IN FLASH, Manual

Page: 767 / 830

Formatting ActionScript syntax 767
■
Align the second line with the start of the expression on the previous line of code.
Writing conditional statements
Use the following guidelines when you write conditional statements:
■
Place conditions on separate lines in
if
,
else..if
, and
if..else
statements.
■
Use braces (
{}
) for
if
statements.
■
Format braces as shown in the following examples:
// if statement
if (condition) {
// statements
}
// if..else statement
if (condition) {
// statements
} else {
// statements
}
// else..if statement
if (condition) {
// statements
} else if (condition) {
// statements
} else {
// statements
}
When you write complex conditions, it is good form to use parentheses [()] to group
conditions. If you don’t use parentheses, you (or others working with your ActionScript 2.0
code) might run into operator precedence errors.
For example, the following code does not use parentheses around the conditions:
if (fruit == apple && veggie == leek) {}
The following code uses good form by adding parentheses around conditions:
if ((fruit == apple) && (veggie == leek)) {}
NO
TE
You can control auto-indentation and indentation settings by selecting Edit >
Preferences (Windows) or Flash > Preferences (Macintosh), and then selecting the
ActionScript tab.