Open In App

JavaScript dataView.setFloat32() Method

Improve
Improve
Improve
Like Article
Like
Save Article
Save
Share
Report issue
Report

The dataView.setFloat32() is an inbuilt function in dataView that 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 the parameter byteOffset which is offset in a byte and it says from the start of the view where to read the data.

Return value: This function does not return anything.

Below are examples of the dataView.setFloat32() Method. 

Example 1: 

javascript




var buffer = new ArrayBuffer(20);
 
var dataview1 = new DataView(buffer, 0, 10);
 
dataview1.setFloat32(1, 12.22);
console.log(dataview1.getFloat32(1));


Output:  

12.220000267028809

Example 2: 

javascript




// 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);
console.log(dataview1.getFloat32(1));


Output: 

56.2400016784668

Example 3: The below code sets the value of PI as Math.PI and gives the output as the value of PI. 

javascript




// 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));


Output:  

3.1415927410125732

Code #3:  When nothing as data is used to store then it gives the output as NaN i.e, not a number. 

javascript




// 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);
console.log(dataview1.getFloat32(1));


Output:  

NaN

We have a complete list of Javascript Date Objects, to check those please go through this JavaScript dataView Complete Reference article.

Supported Browsers: 

  • Google Chrome 9 and above
  • Edge 12 and above
  • Firefox 15 and above
  • Internet Explorer 10 and above
  • Opera 12.1 and above
  • Safari 5.1 and above

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.  



Last Updated : 02 Jan, 2023
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads