Javascript Top-level Functions & Properties

decodeURI() Decodes an encoded URI

decodeURIComponent()Decodes an encoded URI component

encodeURI() Encodes a string as a URI

encodeURIComponent()Encodes a string as a URI component

escape() Encodes a string

eval() Evaluates a string and executes it as if it was script code

isFinite() Checks if a value is a finite number

isNaN() Checks if a value is not a number

Number() Converts an object's value to a number

parseFloat() Parses a string and returns a floating point number

parseInt() Parses a string and returns an integer

String() Converts an object's value to a string

unescape() Decodes a string encoded by escape()

Top-level Properties

Infinity A numeric value that represents positive or negative infinity

NaN Indicates that a value is "Not a Number"

Undefined Indicates that a variable has not been assigned a value