JavaScript | dataView.getInt16()

The dataView.getInt16() is an inbuilt function in dataView which is used to get a 16-bit integer at the specified location i.e, at byte offset from the start of the dataView. The range of 16-bit integer value is from 0 and 65,535 for unsigned and from ?32,768 to 32,767 for signed integer value.
Syntax:

dataview.getInt16(byteOffset)

Parameters: It has parameter byteOffset which is offset in byte and it says where to read the data from the beginning(start) of the view .
Return value: It returns 16-bit signed integer value.

JavaScript code to show the working of this method:

Code #1:

filter_none

edit
close

play_arrow

link
brightness_4
code

<script>
  
    // Creating buffer with size in byte
    var buffer = new ArrayBuffer(20);
  
    // Creating a view
    var dataview1 = new DataView(buffer, 0, 10);
  
    // put the data 56 at slot 1
    dataview1.setInt16(1, 56);
    document.write(dataview1.getInt16(1) + "<br>");
  
</script>                                                                    

chevron_right






                        filter_none








Output:


56


Code #2:

Here as it can be seen that this function do not take float value when this float value is given to this function then it convert that value to integer value.











                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















<script> 


  


    // Creating buffer with size in byte 


    var buffer = new ArrayBuffer(20); 


  


    // Creating a view with slot from o to 10 


    var dataview1 = new DataView(buffer, 0, 10); 


  


    // put the 4.5 at slot 1 


    dataview1.setInt16(1, 4.5); 


    document.write(dataview1.getInt16(1) + "<br>"); 


  


</script>                                                                      



















                        chevron_right







                        filter_none








Output:


4


Code #3:

When there is no data to be stored, then it returns NaN i.e, not a number.











                                    filter_none




                                    edit

                                    close




                                    play_arrow




                                    link

                                    brightness_4

                                    code
                                




















<script> 


  


    // Creating buffer with size in byte 


    var buffer = new ArrayBuffer(20); 


  


    // Creating a view 


    var dataview1 = new DataView(buffer, 0, 10); 


  


    // putting no data at slot 1 


    dataview1.setInt16(1); 


    document.write(dataview1.getInt16(1) + "<br>"); 


  


</script>                                                                      



















                        chevron_right







                        filter_none








Output:


0



          
          
          
          

            

    

        My Personal Notes
        arrow_drop_up
    

    

        
        

            
            
        

    


Recommended Posts:
ShivamKD
Check out this Author's contributed articles.
If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.
Please Improve this article if you find anything incorrect by clicking on  the "Improve Article" button below.