The dataView.getUint8() is an inbuilt function in dataView which is used to get a 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 parameter byteOffset which is offset in byte and it says from the start of the view where to read the data.
Return value: It returns unsigned 8-bit integer.
Code #1:
<script> // 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.setUint8(1, 56); document.write(dataview1.getUint8(1) + "<br>"); </script> |
Output:
56
Code #2:
This function convert the float value of PI from 3.14 to 3
<script> // 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.setUint8(1, Math.PI); document.write(dataview1.getUint8(1) + "<br>"); </script> |
Output:
3
Code #3:
When there is no data to be stored, then it returns zero (0).
<script> // 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.setUint8(1); document.write(dataview1.getUint8(1) + "<br>"); </script> |
Output:
0
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