Javascript-function/arguments

Description:

Create a new function.

Syntax:

1. Function funname ([argu1 [, argu2 [,... [, Argun]) {}
2. VaR funname = function ([argu1 [, argu2 [,... [, Argun]) {}

Funname is essential.

Example:

Example	Effect
Function add (x, y ){ReturnX + Y;} document. Write (add (1, 2 ));	3
VaR add =NewFunction ("X","Y","Return x + y"); Document. Write (add (1, 2 ));	3

 

Attribute:

Attribute	Description
Arguments	Returns an arguments object for the currently executed function object.
Caller	Returns a reference to the function that calls the current function.

 

 

Arguments:

The arguments object cannot be displayed. The arguments object is only available at the beginning of the function.

The arguments object of the function is not an array, but it can be accessed using subscript like an array.

Attribute	Description
[I]	I: required. Returns the value of the I parameter. Syntax: Arguments [I]
Length	Returns the number of parameters of the function. Syntax: Arguments. Length
Callee	Returns the function object being executed.

Example:

Example	Effect
Function CILS (x, y) {document. Write ("ARGs:"+ Arguments. Length +"<Br/>");For(VAR I = 0; I <arguments. length; I ++) {document. Write ("ARGs ["+ I +"] ="+ Arguments [I] +"<Br/>") ;}} CILS );
Function add (x ){If(X = 1 ){Return1 ;}Else{ReturnX + arguments. callee (x-1);} document. Write (add (100 ));