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7.9 Array Object

The Array object provides support for creation of arrays of any data type.
 

Methods

concat
 
Combines two arrays to make a new array.
 
join
 
Converts all elements of an array into a String object and joins them.
 
reverse
 
Reverses the elements of an array.
 
slice
 
Returns a section of an array.
 
sort
 
Sorts the elements of an array.
 

Properties

length
 
An integer value one higher than the highest element defined in an array.
 

Syntax

new Array()

new Array(size)

new Array(element0, element1, ..., elementn)

Arguments

size
The size of the array. As arrays are zero-based, created elements will have indices from zero to size - 1.
element0,...,elementn
The elements to place in the array. This creates an array with n + 1 elements, and a length of n.

Remarks

After an array is created, the individual elements of the array can be accessed using [ ] notation, for example:
 

var my_array = new Array();

for (i = 0; i < 10; i++)

{

my_array[i] = i;

}

x = my_array[4];

Since arrays in Microsoft JScript are zero-based, the last statement in the preceding example accesses the fifth element of the array. That element contains the value 4.
 
If only one argument is passed to the Array constructor, and it is a number, it is coerced into an unsigned integer and the value is used as the size of the array. Otherwise, the parameter passed in is used as the only element of the array.
 

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