DataView.getFloat32() function in JavaScript

Javascript Web Development Front End Scripts

The getFloat32() function of the DataView gets and returns a signed 32-bit floating point number at the specified position.

Syntax

Its syntax is as follows

dataView.getFloat32();

Example

Try the following example.

Live Demo

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(8);
      var dataView = new DataView(arrayBuffer);
      dataView.setFloat32(1, Math.LOG2E);
      document.write(dataView.getFloat32(1));
   </script>
</body>
</html>

Output

1.4426950216293335

Example

To this function, in addition to floating point values you can also pass Math functions.

Live Demo

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(8);
      var dataView = new DataView(arrayBuffer);
      dataView.setFloat32(1, Math.LOG2E);
      document.write(dataView.getFloat32(1));
   </script>
</body>
</html>

Output

1.4426950216293335

Example

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

Live Demo

<html>
<head>
   <title>JavaScript Example</title>
</head>
<body>
   <script type="text/javascript">
      var arrayBuffer = new ArrayBuffer(8);
      var dataView = new DataView(arrayBuffer);
      dataView.setFloat32(1);
      document.write(dataView.getFloat32(1));
   </script>
</body>
</html>

Output

NaN

Sharon Christine

Updated on: 25-Jun-2020

65 Views

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