VBScript ASP CDBL () function conversion to double precision type _ Application Tips

CDBL function

Returns an expression that has been converted to a Variant of the Double subtype.

CDBL (expression)

The expression parameter is any valid expression.

Description
Typically, you can use subtype data conversion functions to write code to show that the results of certain operations should be expressed as a specific data type, not as a default data type. For example, in the case of currency or integer operations, use the CDBL or CSng function to force double or single-precision arithmetic operations.

The CDBL function is used for internationally recognized format conversions from other data types to Double subtypes. For example, the recognition of the decimal separator and the thousand separator depends on the locale of the system.

The following example uses the CDBL function to convert expression to Double.

Dim Mycurr, MyDouble

Mycurr = CCur (234.456784) ' Mycurr is Currency type (234.4567).

MyDouble = CDBL (Mycurr * 8.2 * 0.01) ' Converts the result to a Double (19.2254576).