JavaScript dataView.getInt8() Method

The dataView.getInt8() is a method in dataView which is used to get an 8-bit integer in the byte at the specified location from the start of the dataView.

Syntax:

dataview.getInt8(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 8-bit signed integer value.

Below are examples of the dataView.getInt8()() Method. 

Example 1:

javascript

var buffer = new ArrayBuffer(16);
var dataview1 = new DataView(buffer, 0, 4);
dataview1.setInt8(0, 12);
console.log(dataview1.getInt8(0));

Output:

12

Example 2:

Javascript

dataview1.setInt8(0, 123);
console.log(dataview1.getInt8(0));

Output: 123

Example 3:

Javascript

dataview.setInt8(3, 45);
console.log(dataview.getInt8(3));

Output: 45

Example 4:

javascript

// Create buffer
var buffer = new ArrayBuffer(16);

// Create one view
var dataview1 = new DataView(buffer, 0, 4);

// put the data at slot 0
dataview1.setInt8(0, 123);
console.log(dataview1.getInt8(0) + "<br>");

// create another view
var dataview2 = new DataView(buffer, 1, 2);

// put data at slot 1
dataview2.setInt8(1, 45);
console.log(dataview2.getInt8(1));

Output:

123
45

Example 5:

Javascript

// Create buffer
var buffer = new ArrayBuffer(16);
var dataview = new DataView(buffer, 0, 10);

// put data at slots
dataview.setInt8(0, 12);
dataview.setInt8(1, 23);
dataview.setInt8(2, 34);
dataview.setInt8(3, 45);
dataview.setInt8(4, 67);
dataview.setInt8(5, 78);
dataview.setInt8(6, 89);
dataview.setInt8(7, 90);
dataview.setInt8(8, 123);

// print the value using getInt8 method that
// prints the first 8 int
console.log(dataview.getInt8(0);
console.log(dataview.getInt8(1);
console.log(dataview.getInt8(2);
console.log(dataview.getInt8(3);
console.log(dataview.getInt8(4);
console.log(dataview.getInt8(5);
console.log(dataview.getInt8(6);
console.log(dataview.getInt8(7);
console.log(dataview.getInt8(8));

Output:

12
23
34
45
67
78
89
90
123

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.