Throughout this book we use statement blocks (statements surrounded by curly braces) with all conditional statements, even if a block contains only one statement:
if (x = = y) {
trace("x and y are equal");
}
For the sake of brevity, ActionScript does not require curly braces when a conditional has only one substatement. A single substatement can, quite legitimately, be placed directly after an if or else if statement without any curly braces, like this:
if (x = = y) trace ("x and y are equal");
or even on the next line, like this:
if (x = = y)
trace ("x and y are equal");
For some programmers, this style can be a little slower to read and slightly more error-prone, though it undeniably saves room in source code.
