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Number (object)
The Number object is a simple wrapper object for the number data type, which means that you can manipulate primitive numeric values using the methods and properties associated with the Number object. This object is identical to the JavaScript Number object. In Flash MX, the Number object has become a native object. As such, you will experience dramatic improvement in performance.
You must use a constructor when calling the methods of the Number object, but you do not need to use the constructor when calling the properties of the Number object. The following examples specify the syntax for calling the methods and properties of the Number object.
The following example calls the toString
method of the Number object, which returns the string "1234".
myNumber = new Number(
1234
);
myNumber.toString();
This example calls the MIN_VALUE
property (also called a constant) of the Number object:
smallest = Number.MIN_VALUE
Method Description Returns the string representation of a Number object. Returns the primitive value of a Number object.
Method summary for the Number object
Property Description Constant representing the largest representable number (double-precision IEEE-754). This number is approximately 1.7976931348623158e+308. Constant representing the smallest representable number (double-precision IEEE-754). This number is approximately 5e-324. Constant representing the value for Not a Number (NaN). Constant representing the value for negative infinity. Constant representing the value for positive infinity. This value is the same as the global variable Infinity.
Property summary for the Number object
Constructor for the Number object
Availability
Flash Player 5.
Usage
myNumber = new Number(
value
)
Parameters
value
The numeric value of the Number object being created, or a value to be converted to a number.
Returns
Nothing.
Description
Constructor; creates a new Number object. You must use the Number constructor when using the toString
and valueOf
methods of the Number object. You do not use a constructor when using the properties of the Number object. The new Number
constructor is primarily used as a placeholder. An instance of the Number object is not the same as the Number
function that converts a parameter to a primitive value.
Example
The following code constructs new Number objects.
n1 = new Number(3.4);
n2 = new Number(-10);
See also
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