JavaScript DataView.getFloat64() method

The JavaScript DataView.getFloat64() is an inbuilt method in dataView. It is used to get a signed 64-bit float(double) number at a specified location.

NOTE: Range of 64-bit floating point number is from -1.7+308 to +1.7E+308.

Syntax

Parameters

byteoffset: The offset, in a byte, from the start of the view where to read the data.

Return value

A signed 64-bit float number.

Browser Support

Example 1

Output:

 If we give a Float value then output will be 5.7 

Example 2

Output:

 if there is no data to be stored, then Output will Be: NaN 

Example 3

Output:

 PI value will be 3.141592653589793