JavaScript DataView.getInt32() method

The JavaScript DataView.getInt32() is an inbuilt method in dataView. It is used to get a signed 32-bit integer(long) number at a specified location.

NOTE: Range of 32-bit integer value is from 2,147,483,648 to 2,147,483,647 for signed integer value.

Syntax

Parameters

byteoffset: The offset, in a byte, from the start of the view where to read the data.

Return value

This method returns a signed 32-bit integer number.

Browser Support

Chrome	9
Safari	5.1
Firefox	15
Opera	12.1

Example 1

<script>
//JavaScript to illustrate dataview.getInt32() method
// creating a ArrayBuffer 
var JavaTpoint = new ArrayBuffer(8);
// creating a view
var arr = new DataView(JavaTpoint);
// put the value 23.3 at slot 1
document.write("If we give a float value, the output will be an Integer<br><br>");
arr.setInt32(1,23.3);
document.write(arr.getInt32(1));
//expected output:23
</script>

Test it Now

Output:

If we give a float value, the output will be an Integer
23

Example 2

<script>
//JavaScript to illustrate dataview.getInt32() method
// if there is no data to be stored then it returns Nan
// creating a ArrayBuffer 
var JavaTpoint = new ArrayBuffer(10);
// creating a view
var arr = new DataView(JavaTpoint);
// NO Data
arr.getInt32(1);
document.write("If there is no data to be stored, Output will Be :<br>")
document.write(arr.getInt32(1));
//expected output:0
</script>

Test it Now

Output:

If there is no data to be stored, Output will Be :
0

Example 3

<script>
//JavaScript to illustrate dataview.getInt32() method
// creating a ArrayBuffer 
var JavaTpoint = new ArrayBuffer(8);
// creating a view
var arr = new DataView(JavaTpoint);
//We can also use math function like Math.PI
document.write("Convert the PI value 3.14 to 3<br><br>");
arr.setInt32(1,Math.PI);
document.write(arr.getInt32(1));
//expected output: 3
</script>

Test it Now

Output:

Convert the PI value 3.14 to 3

3

Example 4

<script>
//JavaScript to illustrate dataview.getInt32() method
// creating a ArrayBuffer 
var JavaTpoint = new ArrayBuffer(8);
// creating a view
var arr = new DataView(JavaTpoint);
// put the value 7 at slot 1
arr.setInt32(1,7);
document.write("If we give an Integer value, Output will  be Integer<br><br>");
document.write(arr.getInt32(1));
//expected output: 7
</script>

Test it Now

Output:

If we give an Integer value, Output will be Integer

7

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