| Infinity Global Property | Flash 5 |
| a constant representing an infinite number | read-only |
A number that exceeds the maximum allowed numeric value in ActionScript is represented by the numeric constant Infinity (although incalculable numbers are represented by NaN). The largest value allowed in ActionScript is represented by Number.MAX_VALUE, which equates to 1.79769313486231e+308. Exceeding the largest allowed number in ActionScript is known as an overflow condition and is typically caused by a mathematical error.
The result of a calculation that exceeds the largest allowed number is Infinity. For example:
Number.MAX_VALUE * 2; // Yields Infinity
Infinity also results when dividing a positive number by zero:
1000 / 0; // Yields Infinity
Infinity is shorthand for Number.POSITIVE_INFINITY.
-Infinity, isFinite( ), NaN, Number.POSITIVE_INFINITY; Section 4.3.3
