JavaScript dataView.setFloat32() Method
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.
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