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DataView.setInt8() function in JavaScript

The setInt8() function of the DataView stores a signed 8-bit floating point number at the specified position.

Syntax

Its syntax is as follows

dataView.setInt8();

Example

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(20);
      var dataView = new DataView(arrayBuffer);
      dataView.setInt8(1, 362);
      document.write(dataView.getInt8(1));
   </script>
</body>
</html>

Output

106

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.setInt8(1, 362.23);
      document.write(dataView.getInt8(1));
   </script>
</body>
</html>

Output

106

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.setInt8(1);
      document.write(dataView.getInt8(1));
   </script>
</body>
</html>

Output

0