Number()

Availability

Flash Player 4; behavior changed in Flash Player 7.

Usage

Number(expression)

Parameters

expression An expression to convert to a number.

Returns

A number or NaN.

Description

Function; converts the parameter expression to a number and returns a value as follows:

• If expression is a number, the return value is expression.
• If expression is a Boolean value, the return value is 1 if expression is true, 0 if expression is false.
• If expression is a string, the function attempts to parse expression as a decimal number with an optional trailing exponent, that is, 1.57505e-3.
• If expression is undefined, the return value is as follows:
  • In files published for Flash Player 6 or earlier, the result is 0.
  • In files published for Flash Player 7 or later, the result is NaN.

This function is used to convert Flash 4 files containing deprecated operators that are imported into the Flash 5 or later authoring environment. For more information, see & (bitwise AND operator).

See also

NaN, Number class