JavaScript dataView.getInt32() Method

The dataView.getInt32() is an inbuilt function in dataView that is used to get a 32-bit integer at the specified location i.e, at byte offset from the start of the dataView. The range of 32-bit integer value is from 0 to 4,294,967,295 for unsigned and from 2,147,483,648 to 2,147,483,647 for the signed integer value.
Syntax:

dataview.getInt32(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 32-bit signed integer value.

Below are examples of the dataView.getFloat32() Method. 

Example 1:

javascript

var buffer = new ArrayBuffer(20);
var dataview1 = new DataView(buffer, 0, 10);
dataview1.setInt32(1, 12);
console.log(dataview1.getInt32(1));

Output:

12

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 at slot 1
dataview1.setInt32(1, 56);
console.log(dataview1.getInt32(1) + "<br>");

Output:

56

Example 3: Here as it can be seen that this function do not take float value when this float value is given to this function then it converts that value to integer value.  

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 4.5 at slot 1
dataview1.setInt32(1, 4.5);
console.log(dataview1.getInt32(1));

Output:

4

Example 4: When there is no data to be stored, then it returns zero (0). 

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.setInt32(1);
console.log(dataview1.getInt32(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.