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Return Types
Array Boolean Date Function JSON Math Number Object RegExp Special Operators Statements String

Property Summary
Number Infinity
Numeric value representing infinity.
Number NaN
Value representing Not-a-Number.
Object undefined
The value undefined.

Method Summary
String decodeURI(encodedURI)
Decodes a URI previously encoded with encodeURI or another similar routine.
String decodeURIComponent(encodedURI)
Decodes a URI component previously created by encodeURIComponent or by a similar routine.
String encodeURI(URI)
Encodes a URI by replacing certain characters with escape sequences.
String encodeURIComponent(URI)
Encodes a URI component by replacing all special characters with their corresponding UTF-8 escape sequences.
Object eval(expression)
Evaluates JavaScript code passed as a string.
Boolean isFinite(n)
Returns true if the given number is a finite number.
void isNaN(value)
The NaN property indicates that a value is 'Not a Number'.
Number parseFloat(text)
Makes a floating point number from the starting numbers in a given string.
Number parseInt(text)
Makes a integer from the starting numbers in a given string in the base specified.
Number parseInt(text, radix)
Makes a integer from the starting numbers in a given string in the base specified.
String uneval(obj)
Returns the string representation behind a given object.

Property Details
Infinity
Numeric value representing infinity.
Returns
Sample
Infinity
NaN
Value representing Not-a-Number.
Returns
Sample
NaN
undefined
The value undefined.
Returns
Sample
undefined

Method Details
decodeURI
String decodeURI (encodedURI)
Decodes a URI previously encoded with encodeURI or another similar routine.
Parameters
{String} encodedURI
Returns
Sample
var str = "http://www.mysite.com/my code.asp?name=[cool]";
var encoded = encodeURI(str);
var decoded = decodeURI(encoded);
application.output(encoded);//http://www.mysite.com/my%20code.asp?name=%5bcool%5d
application.output(decoded);//http://www.mysite.com/my code.asp?name=[cool]
decodeURIComponent
String decodeURIComponent (encodedURI)
Decodes a URI component previously created by encodeURIComponent or by a similar routine.
Parameters
{String} encodedURI
Returns
Sample
var str = "my code.asp?name=[cool]";
var encoded = encodeURIComponent(str);
var decoded = decodeURIComponent(encoded);
application.output(encoded); //my%20code.asp%3fname%3d%5bcool%5d
application.output(decoded); //my code.asp?name=[cool]
encodeURI
String encodeURI (URI)
Encodes a URI by replacing certain characters with escape sequences.
Parameters
{String} URI
Returns
Sample
var str = "http://www.mysite.com/my code.asp?name=[cool]";
var encoded = encodeURI(str);
var decoded = decodeURI(encoded);
application.output(encoded);//http://www.mysite.com/my%20code.asp?name=%5bcool%5d
application.output(decoded);//http://www.mysite.com/my code.asp?name=[cool]
encodeURIComponent
String encodeURIComponent (URI)
Encodes a URI component by replacing all special characters with their corresponding UTF-8 escape sequences.
Parameters
{String} URI
Returns
Sample
var str = "my code.asp?name=[cool]";
var encoded = encodeURIComponent(str);
var decoded = decodeURIComponent(encoded);
application.output(encoded); //my%20code.asp%3fname%3d%5bcool%5d
application.output(decoded); //my code.asp?name=[cool]
eval
Object eval (expression)
Evaluates JavaScript code passed as a string. Returns the value returned by the evaluated code.
Parameters
{String} expression
Returns
Sample
eval("var x = 2 + 3;");
application.output(x); // prints: 5.0
isFinite
Boolean isFinite (n)
Returns true if the given number is a finite number.
Parameters
{Number} n
Returns
Sample
application.output(isFinite(1)); // prints: true
application.output(isFinite(Infinity)); // prints: false
application.output(isFinite(isNaN)); // prints: false
isNaN
void isNaN (value)
The NaN property indicates that a value is 'Not a Number'.
Parameters
{Object} value
Returns
void
Sample
isNaN( value )
parseFloat
Number parseFloat (text)
Makes a floating point number from the starting numbers in a given string.
Parameters
{String} text
Returns
Sample
parseFloat('string')
parseInt
Number parseInt (text)
Makes a integer from the starting numbers in a given string in the base specified.
Parameters
{String} text
Returns
Sample
parseInt('0774')
parseInt
Number parseInt (text, radix)
Makes a integer from the starting numbers in a given string in the base specified.
Parameters
{String} text
{Number} radix
Returns
Sample
parseInt('0774' , 8)
uneval
String uneval (obj)
Returns the string representation behind a given object.
Parameters
{Object} obj
Returns
Sample
application.output(uneval(isNaN)); // prints something like: function isNaN() { [native code for isNaN, arity=1] }

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