The getFloat32() function of the DataView gets and returns a signed 32-bit floating point number at the specified position.
Its syntax is as follows
dataView.getFloat32();
Try the following example.
<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>
1.4426950216293335
To this function, in addition to floating point values you can also pass Math functions.
<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>
1.4426950216293335
If nothing is stored in the dataview and if you still, try to get data this function will return NaN.
<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>
NaN
