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JavaScript Tutorial

  1. JavaScript Browser Objects Part 2
  2. JavaScript Frame object
  3. JavaScript Form Object
  4. JavaScript FileUpload Object
  5. JavaScript Event Object Properties and Methods
  6. JavaScript Event Object
  7. JavaScript Elements and Embed Objects
  8. JavaScript Applet Objects
  9. JavaScript Browser Objects
  10. JavaScript Object Oriented Features
  11. JavaScript Window Object Open Method Part 2
  12. JavaScript Window Object Open Method
  13. JavaScript Window Object Timeout Methods
  14. JavaScript Location Object
  15. JavaScript Location Object Properties
  16. JavaScript History Object Properties and Methods
  17. JavaScript Document Object Methods Part II
  18. JavaScript Document Object Methods Part I
  19. JavaScript Document Object Properties
  20. JavaScript Document Object
  21. JavaScript Windows Object Properties Part II
  22. JavaScript Windows Object Properties Part I
  23. JavaScript DOM Window Object
  24. Working with JavaScript DOM Objects
  25. JavaScript Array Object Methods – Part II
  26. JavaScript Array Object
  27. JavaScript Array Object Methods – Part I
  28. JavaScript Boolean Object
  29. JavaScript OnError Event
  30. JavaScript Exception Handling – Part II
  31. JavaScript Exception Handling – Part I
  32. JavaScript Event Handler
  33. JavaScript Events Handling
  34. JavaScript Array Operations
  35. JavaScript Two Dimensional Arrays
  36. Passing values to JavaScript Function
  37. JavaScript Functions
  38. JavaScript Arrays
  39. JavaScript Iterative Structures - Part II
  40. JavaScript Iterative Structures - Part I
  41. JavaScript Math Object
  42. JavaScript Date Object
  43. JavaScript String Object
  44. JavaScript Objects
  45. JavaScript Confirm Box
  46. JavaScript Alert Box
  47. JavaScript Conditional Statements Part 2
  48. JavaScript Conditional Statements Part 1
  49. How to use JavaScript in HTML page
  50. JavaScript Variables
  51. JavaScript Features
  52. JavaScript Introduction

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JavaScript Array Object Methods

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Author : Exforsys Inc.     Published on: 6th Jun 2007

JavaScript Array Object

Methods of Array Object in JavaScript:

There are various methods used with Array object of JavaScript:

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  • valueOf()
  • sort()
  • concat()
  • join()
  • pop()
  • push()
  • shift()
  • reverse()
  • slice()
  • splice()
  • toString()
  • unshift()

valueOf():

The method valueOf() of the Array object of JavaScript is used to return the primitive value of an Array object.

NOTE: the valueOf() method of the Array object is usually called automatically by JavaScript and not explicitly by the programmer.

General syntax of the valueOf() method of the Array object of JavaScript:


arrayObject.valueOf()

sort():

The method sort()is used to sort the elements of an array object in JavaScript.

General syntax of the sort() method of the Array object of JavaScript:


arrayObject.sort(sortby)

In the above, the sortby argument is optional. If it is given, it indicates the order in which the sorting must take place which must be defined as a function.

For example:


<html>

   <body>
      <
script type="text/javascript">
         var exforsys = new Array(5)
         exforsys[0] = "Test"
         exforsys[1] = "Welcome"
         exforsys[2] = "Training"
         exforsys[3] = "Good"
         exforsys[4] = "Day"
         document.write("The Original Array is:" +"<br />")
         document.write(exforsys + "<br />")
         document.write("The Sorted Array is:" +"<br />")
         document.write(exforsys.sort())
          
      </script>
   </
body>
</
html>

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The output of the above example is:


The Original Array is:
Test,Welcome,Training,Good,Day
The Sorted Array is:
Day,Good,Test,Training,Welcome

The first output statement prints the array as such without sorting. The second document.write statement has sort() method defined in it with the Array Object exforsys. Thus, the array is sorted before printing.



 
This tutorial is part of a JavaScript Tutorial tutorial series. Read it from the beginning and learn yourself.

JavaScript Tutorial

  1. JavaScript Browser Objects Part 2
  2. JavaScript Frame object
  3. JavaScript Form Object
  4. JavaScript FileUpload Object
  5. JavaScript Event Object Properties and Methods
  6. JavaScript Event Object
  7. JavaScript Elements and Embed Objects
  8. JavaScript Applet Objects
  9. JavaScript Browser Objects
  10. JavaScript Object Oriented Features
  11. JavaScript Window Object Open Method Part 2
  12. JavaScript Window Object Open Method
  13. JavaScript Window Object Timeout Methods
  14. JavaScript Location Object
  15. JavaScript Location Object Properties
  16. JavaScript History Object Properties and Methods
  17. JavaScript Document Object Methods Part II
  18. JavaScript Document Object Methods Part I
  19. JavaScript Document Object Properties
  20. JavaScript Document Object
  21. JavaScript Windows Object Properties Part II
  22. JavaScript Windows Object Properties Part I
  23. JavaScript DOM Window Object
  24. Working with JavaScript DOM Objects
  25. JavaScript Array Object Methods – Part II
  26. JavaScript Array Object
  27. JavaScript Array Object Methods – Part I
  28. JavaScript Boolean Object
  29. JavaScript OnError Event
  30. JavaScript Exception Handling – Part II
  31. JavaScript Exception Handling – Part I
  32. JavaScript Event Handler
  33. JavaScript Events Handling
  34. JavaScript Array Operations
  35. JavaScript Two Dimensional Arrays
  36. Passing values to JavaScript Function
  37. JavaScript Functions
  38. JavaScript Arrays
  39. JavaScript Iterative Structures - Part II
  40. JavaScript Iterative Structures - Part I
  41. JavaScript Math Object
  42. JavaScript Date Object
  43. JavaScript String Object
  44. JavaScript Objects
  45. JavaScript Confirm Box
  46. JavaScript Alert Box
  47. JavaScript Conditional Statements Part 2
  48. JavaScript Conditional Statements Part 1
  49. How to use JavaScript in HTML page
  50. JavaScript Variables
  51. JavaScript Features
  52. JavaScript Introduction
 

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