The dataView.getUint8() is an inbuilt function in dataView that is used to get an unsigned 8-bit integer at the specified location i.e, at byte offset from the start of the dataView.
Syntax:
dataView.getUint8(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: It returns an unsigned 8-bit integer.
Below are examples of the dataView.getUint8() Method.
Example 1:
javascript
var buffer = new ArrayBuffer(20); var dataview1 = new DataView(buffer, 0, 10); dataview1.setUint8(1, 12); console.log(dataview1.getUint8(1)); |
Output:
12
Example 2:
javascript
// Creating buffer with size in bytevar buffer = new ArrayBuffer(20);// Creating a viewvar dataview1 = new DataView(buffer, 0, 10);// put the data 56 at slot 1dataview1.setUint8(1, 56);console.log(dataview1.getUint8(1)); |
Output:
56
Example 3: This function convert the float value of PI from 3.14 to 3.
javascript
// Creating buffer with size in bytevar buffer = new ArrayBuffer(20);// Creating a view with slot from o to 10var dataview1 = new DataView(buffer, 0, 10);// put the value of PI at slot 1dataview1.setUint8(1, Math.PI);console.log(dataview1.getUint8(1)); |
Output:
3
Example 4: When there is no data to be stored, then it returns zero (0).
javascript
// Creating buffer with size in bytevar buffer = new ArrayBuffer(20);// Creating a viewvar dataview1 = new DataView(buffer, 0, 10);// putting no data at slot 1dataview1.setUint8(1);console.log(dataview1.getUint8(1)); |
Output:
0
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.
