JavaScript 2.0-The Complete Reference, Second ... - freecodingtutorial

var instanceName = new Function([arg1 [, arg2 [, ...]] ,] body);
The body parameter is a string containing the text that makes up the body of the function. The
optional argN‘s are the names of the formal parameters the function accepts. For example:
var myAdd = new Function("x", "y", "return x + y");
var sum = myAdd(17, 34);
Properties
arguments[] An implicitly filled and implicitly available (directly usable as "arguments"
from within the function) array of parameters that were passed to the function. This
value is null if the function is not currently executing. (IE4+ (JScript 2.0+), MOZ, N3+
(JavaScript 1.1+), ECMA Edition 1)
arguments.callee Reference to the current function. This property is deprecated. (N4+,
MOZ, IE5.5+)
arguments.caller Reference to the function that invoked the current function. This
property is deprecated. (N3, IE4+)
arguments.length The number of arguments that were passed to the function. (IE4+
(JScript 2.0+), MOZ, N3+ (JavaScript 1.1+), ECMA Edition 1)
arity Numeric value indicating how many arguments the function expects. This property
is deprecated. (N4+, MOZ)
caller Reference to the function that invoked the current function or null if called from
the global context. (IE4+ (JScript 2.0+), MOZ, N3+)
constructor Reference to the constructor object that created the object. (IE4+ (JScript
2.0+), N3+ (JavaScript 1.1+), ECMA Edition 1)
length The number of arguments the function expects to be passed. (IE4+ (JScript
2.0+), N3+ (JavaScript 1.1+), ECMA Edition 1)
prototype Reference to the object‘s prototype. (IE4+ (JScript 2.0+), N3+ (JavaScript
1.1+), ECMA Edition 1)
Methods
apply(thisArg [, argArray]) Invokes the function with the object referenced by thisArg
as its context (so references to this in the function reference thisArg). The optional
parameter argArray contains the list of parameters to pass to the function as it is
invoked. (IE5.5+ (JScript 5.5+), N4.06+ (JavaScript 1.3+), MOZ, ECMA Edition 3)
call(thisArg [, arg1 [, arg2 [, ...]]]) Invokes the function with the object referenced by
thisArg as its context (so references to this in the function reference thisArg). The
optional parameters argN are passed to the function as it is invoked. (IE5.5+ (JScript
5.5+), N4.06+ (JavaScript 1.3+), MOZ, ECMA Edition 3)
toString() Returns the string version of the function source. The body of built-in and
browser objects will typically be represented by the value "[native code]". (IE4+ (JScript
2.0+), N3+ (JavaScript 1.1+), MOZ, ECMA Edition 1)
valueOf() Returns the string version of the function source. The body of built-in and
browser objects will typically be represented by the value "[native code]". (IE4+ (JScript
2.0+), N3+ (JavaScript 1.1+), MOZ, ECMA Edition 1)
Support
Supported in IE4+ (JScript 2.0+), N3+ (JavaScript 1.1+), MOZ, ECMAScript Edition 1.
Notes
General examples of functions are found throughout the book, but see Chapter 5 for examples
of the advanced aspects of functions and the Function object.
Global (Built-in Object)
The Global object provides methods and constants that can be used freely anywhere in your
scripts. Global is defined to be the globally enclosing context, so this object cannot be
instantiated or even directly accessed; its properties and methods are always within the scope
of an executing script. Its sole purpose is as a catch-all for globally available methods and
constants.