Javascript Array Objects - Properties and Methods
Description
An Array is used to store a number of values (called as elements) in order with a single variable.
Can be created using javascript array object constructor.
new Array(size)
new Array(element0, element1, ..., elementN)
Parameters
size: The length of the array. If the value specified is not a number, an array of length 1 is created, with the first element having the specified value. The maximum length allowed for an array is 4,294,967,295.
element0,element1,...., elementN: A list of values for the array's elements
Example
w3r = new array ("php","html","css"); creates an array.
w3r[0] refers to php,
w3r[1] refers to html and
w3r[2] refers to css.
Javascript Array Objects Property
| Name | Description | Version |
|---|---|---|
| constructor | Specifies the function which creates an object's prototype. | Implemented in JavaScript 1.2 |
| index | The position of a regular expression match within a string. | Implemented in JavaScript 1.2 |
| input | Contains the original string against which the regular expression was matched. | Implemented in JavaScript 1.2 |
| length | Returns the number of elements in an array | Implemented in JavaScript 1.2 |
| prototype | Use to add new properties to all objects. | Implemented in JavaScript 1.2 |
Javascript Array Objects Methods
| Name | Description | Version |
|---|---|---|
| concat | Use to join two or more arrays and returns a new array. | Implemented in JavaScript 1.2 |
| join | Use to join all elements of an array into a string. | Implemented in JavaScript 1.2 |
| pop | Use to remove the last element from an array. | Implemented in JavaScript 1.2 |
| push | Use to add one or more elements at the end of an array. | Implemented in JavaScript 1.2 |
| reverse | Use to reverse the order of the elements in an array. | Implemented in JavaScript 1.2 |
| shift | Use to remove first element from an array. | Implemented in JavaScript 1.2 |
| slice | Use to extract a section of an array. | Implemented in JavaScript 1.2 |
| splice | Use to remove old elements and add new elements to an array. | Implemented in JavaScript 1.2 |
| sort | Use to sort the elements of an array. | Implemented in JavaScript 1.2 |
| tosource | Returns a string which represent the source code of the array. | Implemented in JavaScript 1.2 |
| tostring | Returns a string represent the array and its elements. | Implemented in JavaScript 1.2 |
| unshift | Use to add one or more elements to the beginning of an array and returns the new length of the array. | Implemented in JavaScript 1.2 |
| valueof | Returns the primitive value of an array. | Implemented in JavaScript 1.2 |
See also :
New Content: Composer: Dependency manager for PHP, R Programming