FLASH® LITE™ 2.x - Adobe Help and Support

This operator also performs string concatenation. All the rules of the addition (+) operator
apply to the addition assignment (+=) operator.
Operands
expression1 : Number - A number or string.
expression2 : Number - A number or string.
Returns
Number - The result of the addition.
Example
Usage 1: This example uses the+= operator with a string expression and sends "My name is
Gilbert" to the Output panel.
var x1:String = "My name is ";
x1 += "Gilbert";
trace(x1); // output: My name is Gilbert
Usage 2: The following example shows a numeric use of the addition assignment (+=)
operator:
var x:Number = 5;
var y:Number = 10;
x += y;
trace(x); // output: 15
See also
+ addition operator
[] array access operator
myArray = [ a0, a1,...aN ]
myArray[ i ] = value
myObject [ propertyName ]
Initializes a new array or multidimensional array with the specified elements (a0, and so on),
or accesses elements in an array. The array access operator lets you dynamically set and retrieve
instance, variable, and object names. It also lets you access object properties.
Usage 1: An array is an object whose properties are called elements, which are each identified
by a number called an index. When you create an array, you surround the elements with the
array access ([]) operator (or brackets). An array can contain elements of various types. For
example, the following array, called employee, has three elements; the first is a number and
the second two are strings (inside quotation marks):
112 ActionScript language elements