JavaScript | dataView.setFloat32()

The dataView.setFloat32() is an inbuilt function in dataView which is used to store a signed 32-bit float value at the specified location i.e, at byte offset from the start of the dataView.
Syntax:

dataView.setFloat32(byteOffset)

Parameters: It has parameter byteOffset which is offset in byte and it says from the start of the view where to read the data.
Return value: This function does not return anything.
JavaScript code to show the working of this method
Example 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 56.24 at slot 1
   dataview1.setFloat32(1, 56.24);
   document.write(dataview1.getFloat32(1));
     
</script>

chevron_right






                        filter_none








Output:


        
          
          
          
        

            

56.2400016784668


Example 2:

Below code set the value of PI as Math.PI and gives output as the value of PI.











                                    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 value of PI at slot 1 


   dataview1.setFloat32(1, Math.PI); 


   document.write(dataview1.getFloat32(1) + "<br>"); 


     


</script> 



















                        chevron_right







                        filter_none








Output:


3.1415927410125732


Example 3:

When nothing as data is used to store then it gives output as 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.setFloat32(1); 


   document.write(dataview1.getFloat32(1) + "<br>"); 


     


</script> 



















                        chevron_right







                        filter_none








Output:


NaN



          
          
          

          

    

        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.


Improved By :  Akanksha_Rai