JavaScript Array Object Reference
The Array Object
The Array object is used to store multiple values in a single variable.
Syntax for creating an Array object:
var myCars=new Array("Saab","Volvo","BMW")
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To access and to set values inside an array, you must use the index numbers
as follows:
- myCars[0] is the first element
- myCars[1] is the second element
- myCars[2] is the third element
Array Object Properties
FF: Firefox, N: Netscape, IE: Internet Explorer
| Property |
Description |
FF |
N |
IE |
| constructor |
Returns a reference to the array function that created the object |
1 |
2 |
4 |
| index |
|
1 |
3 |
4 |
| input |
|
1 |
3 |
4 |
| length |
Sets or returns the number of elements in an array |
1 |
2 |
4 |
| prototype |
Allows you to add properties and methods to the object |
1 |
2 |
4 |
Array Object Methods
| Method |
Description |
FF |
N |
IE |
| concat() |
Joins two or more arrays and returns the result |
1 |
4 |
4 |
| join() |
Puts all the elements of an array into a string. The
elements are separated by a specified delimiter |
1 |
3 |
4 |
| pop() |
Removes and returns the last element of an array |
1 |
4 |
5.5 |
| push() |
Adds one or more elements to the end of an array and returns
the new length |
1 |
4 |
5.5 |
| reverse() |
Reverses the order of the elements in an array |
1 |
3 |
4 |
| shift() |
Removes and returns the first element of an array |
1 |
4 |
5.5 |
| slice() |
Returns selected elements from an existing array |
1 |
4 |
4 |
| sort() |
Sorts the elements of an array |
1 |
3 |
4 |
| splice() |
Removes and adds new elements to an array |
1 |
4 |
5.5 |
| toSource() |
Represents the source code of an object |
1 |
4 |
- |
| toString() |
Converts an array to a string and returns the result |
1 |
3 |
4 |
| unshift() |
Adds one or more elements to the beginning of an array and
returns the new length |
1 |
4 |
6 |
| valueOf() |
Returns the primitive value of an Array object |
1 |
2 |
4 |
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