DataView.getUint8() function in JavaScript

The getUint8() function of the DataView gets and returns an unsigned 8-bit integer at the specified position.

Syntax

Its syntax is as follows

dataView.getUint8();

Example

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(20);
      var dataView = new DataView(arrayBuffer);
      dataView.setUint8(1, 657);
      document.write(dataView.getUint8(1));
   </script>
</body>
</html>

Output

Example

To this function you cannot pass float value, if you try to do so it is considered as integer value.

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(20);
      var dataView = new DataView(arrayBuffer);
      dataView.setUint8(1, 657.82);
      document.write(dataView.getUint8(1));
   </script>
</body>
</html>

Output

Example

If nothing is stored in the dataview and if you still, try to get data, this function will return 0.

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(20);
      var dataView = new DataView(arrayBuffer);
      dataView.setUint8(1);
      document.write(dataView.getUint8(1));
   </script>
</body>
</html>