JavaScript API Reference for Oracle ADF Faces

SUMMARY: FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD

org.ecmascript.primitive
Class Number

org.ecmascript.object.Object
   |
   +--org.ecmascript.primitive.Number

public class Number
extends Object

The native browser JavaScript object used to wrap primitive numeric values.

Note that this object is implemented and supported by the web browser and results of its use may vary.

Field Summary

public Number	MAX_VALUE The largest possible value in JavaScript.
public Number	MIN_VALUE The smallest possible value in JavaScript.
public Number	NaN An identifier for values that are not numbers.
public Number	NEGATIVE_INFINITY An identifier for values that are less than MIN_VALUE.
public Number	POSITIVE_INFINITY An identifier for values that are greater than MAX_VALUE.

Fields inherited from org.ecmascript.object.Object

constructor, prototype

Constructor Summary

public

Number(Number value) The native browser JavaScript object used to wrap primitive numeric values.

Method Summary

public String	toExponential(Number numberOfDecimalPlaces) Creates a String representation of the number in exponential notation using the specified number of decimal places.
public String	toFixed(Number numberOfDecimalPlaces) Creates a String representation of the number that is rounded to the specified number of decimal places.
public String	toPrecision(Number numberOfDigits) Creates a String representation of the number that uses only the specified number of digits.
public String	toString(Number radix) Creates a String representation of the number using the specified radix.

Field Detail

MAX_VALUE

public Number MAX_VALUE

The largest possible value in JavaScript.

MIN_VALUE

public Number MIN_VALUE

The smallest possible value in JavaScript.

NaN

public Number NaN

An identifier for values that are not numbers. For example, NaN would result from someone trying to parse a String that cannot be converted into a Number.

Notice the subtlety with Number.NaN, Global.NaN, and Global.isNaN():

• NaN == Number.NaN has a result of false.
• NaN === Number.NaN has a result of false.
• NaN == NaN has a result of false.
• NaN === NaN has a result of false.
• Number.NaN == Number.NaN has a result of false.
• Number.NaN === Number.NaN has a result of false.
• isNaN(NaN) has a result of true.
• isNaN(Number.NaN) has a result of true.

See also:

Global.isNaN(String)

Global.NaN

NEGATIVE_INFINITY

public Number NEGATIVE_INFINITY

An identifier for values that are less than MIN_VALUE.

POSITIVE_INFINITY

public Number POSITIVE_INFINITY

An identifier for values that are greater than MAX_VALUE.

See also:

Global.Infinity

Constructor Detail

Number

public Number(Number value)

The native browser JavaScript object used to wrap primitive numeric values.

Note that this object is implemented and supported by the web browser and results of its use may vary.

Parameters:

value

-

the numeric value to convert into a number; if conversion fails, Number.NaN will be used instead

Method Detail

toExponential

public String toExponential(Number numberOfDecimalPlaces)

Creates a String representation of the number in exponential notation using the specified number of decimal places.

Parameters:

numberOfDecimalPlaces

-

the number of decimal places to use

Return:

String - a String representation of the number in exponential notation using the specified number of decimal places

toFixed

public String toFixed(Number numberOfDecimalPlaces)

Creates a String representation of the number that is rounded to the specified number of decimal places.

Parameters:

numberOfDecimalPlaces

-

the number of decimal places to use

Return:

String - a String representation of the number in rounded to the specified number of decimal places

toPrecision

public String toPrecision(Number numberOfDigits)

Creates a String representation of the number that uses only the specified number of digits.

Parameters:

numberOfDigits

-

the number of digits to use

Return:

String - a String representation of the number that uses only the specified number of digits

toString

public String toString(Number radix)

Creates a String representation of the number using the specified radix.

Parameters:

radix

-

optional base radix used to represent the number, e.g. 2 for binary, 8 for octal, 10 for decimal, and 16 for hexadecimal Default value = 10

Return:

String - a String representation of the number using the specified radix

SUMMARY: FIELD | CONSTR | METHOD DETAIL: FIELD | CONSTR | METHOD